Using cross multiply and divide the equation looks like so 46/115 next to x/100 to get an answer of 40%
For this case we have the following variables:
x: number of months
f (x): number of caps sold
The function that models the problem is given by:

By the time the store sells 64 caps we have:

From here, we clear the number of months:

Answer:
the store sells 64 caps in 3 monts
A. month 3
A. 3
explanation:
3(2)-3
6-3
3