Answer:
48
Step-by-step explanation:
Its three because three divided by two times three plus equal 13.5
The volume of the pyramid is 
Explanation:
The height of the square pyramid is 18 cm
The base of the square pyramid is 11 cm
The volume of the square pyramid can be determined using the formula,

Substituting
and
in the formula, we have,

Simplifying, we have,

Multiplying, we get,

Dividing, we get,

Thus, the volume of the pyramid is 
2000 x 1.03^5 = $2318.55
i think this question is about compound interest so my answer should be correct i hope it helps