9. Answer: It's a proportional relationship, since every hour he charges $6.25.
Work: there is no work, but you did need the linear equation, which you have written in question 11,
10. Answer: Ratio of how much Steven charges per hour,

Work:

12. Answer: $18.75
Work:
An equivalent measurement to 2 meters is 200 cm. Since 1 meter is equivalent to 100 cm, multiply both of them by two. So, your answer is - 2 meters is equivalent to 200 cm.
Hope it helps :)
Answer: -x^4 - 3x^3 - x^2 + 4x + 6
Explanation
Answer: 17/60 = 0.283333333333
25/60 = 0.416666666667
54/72 = 0.75
31/44 = 0.704545454545
Step-by-step explanation: