Can someone help me pls

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

Shirley spelled 12 of her 15 spelling words correctly on the test. what percentage did shirley get on the test?

Which of the following functions is graphed above? a. f(x) = 4log(x + 4) b. f(x) = -4log(x + 4) c. f(x) = 4log(-x - 4) d. f(x) = -4log(-x + 4)