Can someone help me with my math my teacher is getting on my nerves

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.

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?