Aborder to surround a picture is to be cut from a 10 1/2 in by 10 1/2 in mat board. if picture is 8 3/4 in by 8 3/4 in what is the width of the board.

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

Ineed to know how to write question one in mathematical terms