Step-by-step explanation:
-2x=30-120
-2x = -90
=x = -90/-2
=x = +45
Answer:
27
f(x) = 5x - 8
f(7) = 5(7) - 8 = 27
Answer:11 more hours
9. Yes
10. No
11. No
12. Yes
13. Yes
14. No