The point-slope formula:

We have the points (-4, -1) and (5, 7).
Substitute:

Sarah's expression is correct because for every hour you get 9 dollars so 9(1) is 9 dollars for one hour. Then for two Hours it would be 9(2) which equals 18.
Answer: 56
Step-by-step explanation: 100 multiplied by 50% is 50 + 12% =56
Answer:
26/30, or 13/15
Step-by-step explanation:
4 1/3=13/3
2/10(13/3)
26/30