A certain shade of purple paint is created by mixing 4 pints of red paint with 7 pints of blue paint. How many pints of blue paint must be mixed with 20 pints of red paint?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes

Factor and solve to find roots x squared -x - 90 =0