5(4a+7u)
20a+35u
Are these expressions equivalent? Explain why or why not.

David bought a poster for an art project. the poster is 2.7 feet wide and 3.9 feet tall. what is the area of the poster?

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?