Chad is lining up children's and adult bicycles at the bike shop where he works. The number of children's bicycles is 8 less than 4 times the number of adult bicycles. There are 15 adult bicycles. How many children's bicycles are there?​

If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.