Solve h^2-2h- 2=0 and round answer to the nearest hundredth

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Match each polynomial with its factorization.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?