Divide the number of quarts you have by 4 to convert to gallons
F(g(x))= -4(10x-6) + 7
f(g(x))= -40x + 24 +7
f(g(x))= -40x +31
It is 320 because if you divide 1000 by 10, you would get 100 (which would be equal to 10% of 1000) So if you multiply 100x3=300. then, 2% of 100 is 20, so you add that to 300 then you 320
The answer is 0.36. I don't think u need to explain why, right ;)
Ok, so if you have $75 and have to pay a % of tax, you move the decimal two spaces to the left then multiply the decimal by 75. So, .0675x75= $5.06 tax, then add 5.06 and 75 which is $80.06, so he does not have enough to pay.
