Paul rode his horse 3 miles due east from his barn. Then he rode 5 miles due north. How far was he from his barn, assuming the ground is flat? Round to the nearest tenth.

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?