The width of a pool is x meters long. The length of the pool is four meters longer than the width. Which expression represents the area of the pool? x^2 + 4
x^2 + 4x
2x^2 + 8
2x^2 + 4x

Write a recursive sequence that represents the sequence defined by the following explicit formula:

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

I’m stuck on this equation, anyone got the answer?