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**Chapter 9 Review**** Pages 360-361**

8.a) The graph shows the amount of money earned based on how many cars they washed.

b) over one, up ten.

c) $10

d)

*C=i*

*15(10)=*

*i*

*150=*

*i*

*13.a)*

*t = time (h) d = distance (d)*

*b) 15 represents the speed of 15km/h that he traveled.*

c)

*d)*

*e) yes, because the cyclist can travel for hours that aren't whole numbers.*

f) 15

*t=d*

*15(10)*

*=d*

*120=*

*d*

## Chapter 9 Practice Test Page 362-363

*9.a)*

*b) 4*

*f=b*

*4(60)=*

*b*

*240+*

*b*

*10.a)*

b)

c) Yes, because the graph shows a straight line.

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