Gas mileage depends in part on the speed of the car. gas mileage of a subcompact car is given by m(x) = -0.04x²+3.6x-49, where 20 < x < 70 represents the speed in miles per hour and m(x) is given in miles per gallon. At what speed will the car get the maximum gas mileage?

what is the maximum gas mileage?​

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

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Complete the steps to find 4.830 ÷ 5