Final answer:
To find H(3 - y) in the function H(x) = 2x + 5, substitute the value of (3 - y) in place of x. Combining like terms gives H(3 - y) = 11 - 2y.
Step-by-step explanation:
To find H(3 - y) in the function H(x) = 2x + 5, we substitute the value of (3 - y) in place of x. So, H(3 - y) = 2(3 - y) + 5. Distributing the 2, we get H(3 - y) = 6 - 2y + 5. Combining like terms, the result is H(3 - y) = 11 - 2y. Therefore, the answer is C. 11 - 2y.