2x-y=15 y=9 what is x

National Fuelsaver Corporation manufactures the Platinum Gasaver, a device they claim "may increase gas mileage by 22%." Here are the percent changes in gas mileage for 15 identical vehicles, as presented in one of the company's advertisements: 48.

Steven has a rectangular closet the length is 10 feet and the width is 48 inches determine the area of the closet in square feet

Bobby spent 122 minutes on school work the first week, but only spent 109 minutes on school work the second week.

Which number completes the Pythagorean Triple of 14, 48, x?

There are muffins in a package. how many packages will be needed to feed 48people if each person has 2 muffins

A plane travels 11,000 miles total. The plane travels at 45 miles per hour. How many hours, days, or both does it take to travel?

Write a simplified expression for the area in square units of rectangle

The measure of a supplement of angle is 12 more than three times the measure of a complement. find the measure of the angle.

Triangle A is rotated 180° counterclockwise about the origin. Which figure is the transformed figure?

4 girls and 2 boys are working on an art project. They have four square pieces of felt. If each person gets an equal share of the felt, how much of piece of felt will each person get?