Answer:
c=6
Step-by-step explanation:
You would multiply 4 by 72 then u multiply 4 * -6 then after that you would add 15
(2/3) / 3 = 1/x...2/3 to 3 lawns = 1 to x lawns
cross multiply
(2/3)(x) = (3)(1)
2/3x = 3
x = 3 * 3/2
x = 9/2 or 4 1/2 lawns can be cut with a full tank of gas
