Unit 5. 18) Amy covered an old garden with gravel. She bought 500 kg of gravel, and it covered a plot with an area of 36 square meters.

How many kilograms of gravel did she use for each square meter?

Ahousekeeper mixed 5 gallons of blue paint with every 9 gallon of yellow paint in order to make a green paint which ratio of gallon of blue paint to gallon of yellow paint will make the same shade of green paint