Elliana is planting flowers in her rectangular backyard. The backyard is 7 yards long and 8 yards wide. Elliana wants to plant sunflowers on 16 square yards of the backyard. The rest of the backyard will be used for a pool. How many square yards are leftover for the pool?

40 square yards

Step-by-step explanation:

The backyard is rectangular and it's dimensions are 7 yards long and 8 yards wide.

The area of a rectangle is given as:

A = L * W

where L = length

W = width

Therefore, the area of the backyard is:

A = 7 * 8 = 56 square yards

Elliana wants to plant sunflowers on 16 square yards of the backyard and the rest of the backyard will be used for a pool.

The area left for the pool will therefore be:

56 - 16 = 40 square yards

40 square yards will be left for the pool.