Donny is 9 years more than 1/2 the age of sue. What is the equation?

Find the area of the regular hexagon if a side is 20 cm.

Find the average rate of change for the given function drom x=1 to x=2

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.)