Pyramid a is a square pyramid with a base side length of 8 inches and a height of 9 inches. pyramid b has a volume of 2,880 in3. how many times bigger is the volume of pyramid b than pyramid a?

15 times larger

Step-by-step explanation: Here's the explanation if you're confused:

You first need to find the volume of Pyramid A with the Volume formula of a square pyramid which is: V=a² where a is the base edge, and h is the height.

Plugging in what we know: V = 8² x 9/3 = 192 in³.

From here, we need to compare the two volumes by dividing.

2,880 in³ ÷ 192 in³ = 15.

So, pyramid B's volume is 15 times bigger than the volume of Pyramid A.

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14