When we add/subtract fractions, why do we need denominators?

What 2d shape makes a cylinder

Why do we state restrictions for rational expression and when do we state the restrictions?

You need two bottles of fertilizer to treat the flower garden shown. How many bottles do you need to treat a similar garden with a perimeter of 105 feet?

What is the product of 567 and 8

What is 13 = 1/6 y + 2x

Angelina spend $50 on 16 packages of cookies for her club members. sugar cookies cost $2.50 per package and chocolate chip cookies cost $3.50 per package. how many packages of each cookie does Angelina buy?

What are solutions to the equation below x^2 + 3x-18=0

A circle's diameter is 22 inches. What is the circle's circumference

You grew 3.8 inches since last year. If you are 61.2 inches tall now, how tall were you a year ago? Write and solve an equation.

A square and rectangle have the same perimeter. The rectangle is 13 cm long and 7 cm wide What is the length of a side of the square