Question

Please help me with this. Thank you!

Answer 1

C = 2.5d. Plugging in for d and C we get the same solution on each side

Answer 2

First choice listed

Explanation:

Pick 2 points from the table and find the slope between them. I chose (30,12) and (20,8). Apply the slope formula to find the cost per CD:

`(Cost)/(CD)= (30-20)/(12-8)=(5)/(2)`

The function then is C = 5/2d. or C = 2.5d, first choice