The length of a rectangle is 4cm longer than the width. the perimeter is 80 cm. find the length and width.

What is the value of r of the geometric series?

Josephine has a great garden with and area of 2x2 + x - 6 square feet

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers