Abs light on ford focus won't go off?

Brakes are slipping and making a clunkin noise how much will it cost to get it fixed?

Probably not - Do you have it on the "macro" setting? That button should have a little flower or something on it. Or maybe you're too close or don't have enough light. Try moving the camera a few inches away from the subject. Could be a lot of things, from cheap & easy to fix to not so cheap to fix. You'll have to let a pro look-it-over. Depends what's wrong and how long you are planning on driving it in that state, it could already be too late and require new discs and or drums. Get it looked at as soon as possible or it will cost you. Pretty broad question and it appears you haven't done your part by getting the trouble codes read before asking for help. Could be a dozen different things. Read this post about how to proceed.

http://ricksfreeautorepairadvice.com/abs-light-on/ It is impossible to give a really accurate answer without knowing what the problems are with the brake system. The anti-lock light is usually caused by a failure of a wheel sensor, and when the ABS system is not working, the car may not stop as well. This may feel like the brakes are "slipping"

The clunking noise is not common so it is hard to even guess what the cause of that is.

Take the car and have the ABS system scanned for computer codes. This will tell you the cause of the ABS light. If it is a sensor, you are looking at about $50 for the part, and then depending on the labor rate in your area, another $75 -$100 for it to be installed.

The entire brake system should be inspected, if you need pads you are looking at anywhere from $85-$200 per axle. It you need rotors or calipers then the cost will be more.

EDIT due to added information

The brake pedal going to the floor means that there's a fluid leak in your brake system. This could be a bad master cylinder, a leaking brake line, or a caliper that has failed. Fill the master cylinder and pump the brakes. Look under the car and see if you can see where the fluid is leaking.

Have the car towed to a shop to be repaired, it is not safe to drive

Could be a lot of things, from cheap & easy to fix to not so cheap to fix. You'll have to let a pro look-it-over.

Depends what's wrong and how long you are planning on driving it in that state, it could already be too late and require new discs and or drums. Get it looked at as soon as possible or it will cost you.

Pretty broad question and it appears you haven't done your part by getting the trouble codes read before asking for help. Could be a dozen different things. Read this post about how to proceed.

http://ricksfreeautorepairadvice.com/abs-light-on/

It is impossible to give a really accurate answer without knowing what the problems are with the brake system. The anti-lock light is usually caused by a failure of a wheel sensor, and when the ABS system is not working, the car may not stop as well. This may feel like the brakes are "slipping"

The clunking noise is not common so it is hard to even guess what the cause of that is.

Take the car and have the ABS system scanned for computer codes. This will tell you the cause of the ABS light. If it is a sensor, you are looking at about $50 for the part, and then depending on the labor rate in your area, another $75 -$100 for it to be installed.

The entire brake system should be inspected, if you need pads you are looking at anywhere from $85-$200 per axle. It you need rotors or calipers then the cost will be more.

EDIT due to added information

The brake pedal going to the floor means that there's a fluid leak in your brake system. This could be a bad master cylinder, a leaking brake line, or a caliper that has failed. Fill the master cylinder and pump the brakes. Look under the car and see if you can see where the fluid is leaking.

Have the car towed to a shop to be repaired, it is not safe to drive