Arlene buys a phone case and charging cord for 15\% off. The original cost of the phone case is $18. Her total discount is \$4.20 , Write and solve an equation to find the original price of the charging cord, r. Enter the correct answers in the boxes.

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

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Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²