Answer:
6
18
30
Step-by-step explanation:
Divide 42 by 7 to determine that you earn 6 dollars per car that you wash.
x=-12
x= | 1 < x < 3
x + 2 < 5 and x - 7 > -6
x < 5 - 2 and x > -6 + 7
I don't know if I am 100% right.
