Answer:
8
Step-by-step explanation:
plug in the number 4, it would be 5•4-12
Do 5•4=20
20-12=8
the answer is 9 14
it's correct so then nine times blah equals 9 / 14
5(x)+2(y)=3.45
7(x)+3(y)=4.90
is the same thing as x * x * x * x.