PLEASE HELP WITH MY MATH

1. What is thw width of a rectangular room with a area of 90 square feet and a length of 9ft?

2. What is the width of a rectangular swimming pool with a rea of 180 square feet and a width of 12 feet?

3. What is the perimeter of a rectangular rose garden that mesures 8 meters by 10meters

4. What is the width of a rectangular ping pong table that messures 8ft in length with a area of 32 square feet?