Final answer:
To find g(f(3)), we first calculate f(3) as 7, then substitute this into g(x) resulting in g(7) which is 49. The given options do not contain this result, suggesting an error in the provided choices.
Step-by-step explanation:
We are asked to find g(f(3)) given that f(x) = 2x + 1 and g(x) = x^2. First, we need to calculate f(3) by substituting 3 into the function f(x), which gives us:
f(3) = 2(3) + 1 = 6 + 1 = 7
Next, we substitute this result into g(x) to get g(f(3)):
g(f(3)) = g(7) = 7^2 = 49
Thus, g(f(3)) is 49, which is not one of the options provided, suggesting a possible typo or error in the question. If the options were to be accurate, then a reevaluation of the original functions or calculations might be required.