The formula for the perimeter of a rectangle is 2(1 + w), where l is the length of the rectangle and w is the width. If a rectangle
is 17 ft long and 8 ft wide, what is its perimeter?

Use the distributive law to multiply. 3(4x + 5y + 6)

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.