If a function uses variables other then x and y for its input and output variables, you take the original equation and solve for the output variable to find the inverse

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

um is there supposed to be a picture?

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%