Which property is illustrated by (7.3 + 5.1) + x = 7.3 + (5.1 + x)? a. additive propertyb. commutative property of addition c. associative property of addition

Volume of a square pyramid is :

Volume = area of base x h/3

The base are of the pyramid would be:

147 = base x 9/3

147 = base x 3

Base = 147/3

Base = 49 square units.

For a square to have a base area of 49 and volume of 147 divide the volume by the base area to find height:

Height = 147 / 49 = 3

The answer is B. 3 units