A rectangle has sides of units and units. If the perimeter of the rectangle is units, what is its area?

Erin is getting ready to plant her tulip garden. She wants to plant two tulips per square foot of garden. If her rectangular garden is enclosed by 24 feet of fencing, and the length of the fence is twice as long as its width, how many tulips will Erin plant?

If the width of a rectangle is 8 inches, and the length is half the width, what is the area of the rectangle in square inches?

George wants to paint the walls in his room blue. The ceilings are 10 ft tall and a carpet 12 ft by 15 ft covers the floor. One gallon of paint covers 400 and costs $40. One quart of paint covers 100 and costs $15. How much money will he spend on the blue paint?

Angela is carpeting a rectangular conference room that measures 20 feet by 30 feet. If carpet comes in rectangular pieces that measures 5 feet by 4 feet, how many carpet pieces will she need to carpet the entire room?

A rectangle has a diagonal of and a width of . What is the area of the rectangle?

Joey is working in his yard. In the middle of his rectangular yard he places a round cement fountain. The fountain has a diameter of . One bag of grass seed covers square feet. How many bags of grass seed will Joey need to cover his yard?

Find the area of a rectangle with a length of and a length of .

Rectangle ABCD is shown in the figure above. Points A and B lie on the graph of y = 64 – _x_2 , and points C and D lie on the graph of y = _x_2 – 36. Segments AD and BC are both parallel to the y-axis. The x-coordinates of points A and B are equal to –k and k, respectively. If the value of k changes from 2 to 4, by how much will the area of rectangle ABCD increase?

The length of a rectangle is 5 times its width. Its width is 3 inches long. What is the area of the rectangle in square inches?