The answer is 90 a triangle is 180 degrees a we know that A is a right angle is 90 and B is 45 so that leaves us with 45 degrees on C. But since we are measuring BC we add them up and that equals 90 <span />
There was only one car that went over the speed limit and it's car A (183). the other cars were all under and how i found this out was take 60 mph x hours n that's the miles they should of drove n that many hours if they are above it the miles will be higher.