Answer:

Step-by-step explanation:
Let's subtract:



A straight line is 180° so....
9x+24 +6x - 24 = 180
15x=180. ( because you have to combine like terms.
X= 12
Answer:
y=-2/3x+10
Step-by-step explanation:
y=2/3x-11
plug in plot and remove intercept
6=-2/3(6)+b
6=-4+b
10=b
y=-2/3x+10
A. C = 17h + 15
b. 83 = 17h + 15
-15 - 15 subtract 15 from both sides
68 = 17h
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17 divide both sides by 17
4=h
They cleaned the house for 4 hours
c. C = 20x
to do this last part, you would put both equations into the calculator under y=, then look at the table to determine when the price is the same. According to the calculator, the price is the same at 5 hours
Answer:
the greatest common factor is 2x^2