Answer:
D
Step-by-step explanation:
f(n) = -3 + (n - 1)·4
f(n) = -3 + 4n - 4
f(n) = 4n - 7
-3 derives from being the first number in the sequence
4 derives from being the positive difference between values in the sequence
The area of the base, B, of the pyramid is 96 cm2
he volume of the pyramid is 320 cm3.
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