Answer:
I believe it would cost 9 cents per cubic foot of gas.
Step-by-step explanation:
One will be c
and 2 will be b
Answer:
12
Step-by-step explanation:
Let n = the number.
2n - 7 = n + 5
n = 12
Let’s check if we got the right answer by substituting 12 for n into the original equation.
2*12 - 7 = 12 + 5
24 - 7 = 17
17 = 17
Step-by-step explanation:
3,500×4×2/100= 280/100 = $2.80
Answer:
12x+19.95=13x+9.95
19.95=x+9.95
10=x
So after 10 classes the cost will be the same
12(10)+19.95=120+19.95= $139.95
13(10)=9.95=130+9.95= $139.95