Jack paid $64.32 for 8 books. How much
did he pay per book?

Perform the indicated operation. 8/a - 6/a + 7/a

Find the solution(s) to x^2-14+49=0

The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)