4/7 = 12/21
12/21 = x + 3/21
9/21 = x
Hope this helped!!
Answer:
164,473
Step-by-step explanation:
just ctrl c ctrl v my NlGGA
First you would take 312 and divide it by 13. Using that answer and put it over 1. Then times the answer that you just got by twelve. Then put that in a mixed number in its simplest form.
The function of x is equal to 7 dollars times the number of hours the cashier works. This function would look something like this:
F(x) = 7x
Hope this helps! :)