Answer:

Step-by-step explanation:
The average rate of change over a interval is the slope m of the straight line joining the two points.

The average rate of change is 
Answer:
<em>The total price David paid for the computer is $933.12</em>
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Step-by-step explanation:
The cost of the computer will be $1,080 with 20% off and 8% sales tax.
20% of 1080 is 1080(0.20)=216 this means 216 is 20% of 1080, so with the discount the price will be 1080-216=$864
Now we have to find 8% of 864.
864(0.08)=$69.12
So the total price will be 864+69.12= $933.12
The bat would cost one dollar and five cents and the ball would cost five cents. The reason is, you have to add them together and any higher or any lower would go over the limit of one dollar and ten cents
2x = 128
divide 2 with 128 and that will be the answer to x
2 divided by 128 = 64
x=64
9m-18=m+40
-m-18=-m-18
8m-36=22
-22 -22
8m-58
————
8 8
M is approximately 6