When Nancy started middle school, she was 60 inches tall. When she started high school, she was 66 inches tall. What was the percent change in her height? 6 percent increase
9 percent increase
10 percent increase
90 percent increase

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Me i'm timed right now! there's 4 answer

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)