Answer:
314
Step-by-step explanation:
3 seats x 15 rows = 45 total seats
45 seats x $74 = $3,330.00 total cost
R(t) = 4t
A(r) = π(r^2)
a) A(t) = A[r(t)] = π[r(t)]^2 = π[4t]^2 = 16π(t^2)
b) t = 4,
A(4) = 16*3.14*(16)^2 = 12,861.44
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