Look at the expression below.
expression 1: x-x
expression 2: -2+4/2
expression 3: 1/4+.25
expression 4: -1//5)
zion made a mistake when using the inverse property of addition to generate equivalent expressions. which expression shows the mistake zion made?

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

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.]

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?