Answer:
C. 49
Step-by-step explanation:
In order to find the value of (gºf)(3) consider that:
(gºf)(3) = g(f(3))
By using the given expressions for g(x) and f(x) and by using x = 3, we obtain:
f(3) = 3(3) - 2 = 9 - 2 = 7
g(f(3)) = g(7) = 7^2 = 49
Hence, the answer is C. 49