Find the area of the shaded (blue) part of the composite figure below. Check off each step as you complete it. Show your work to get full credit.
3

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6

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.)