Question

Recycled cd’s incorporated, offers a choice of 5 used CD for $24, with each additional CD costing $5. Write a cost function for purchasing 5 or more CD’s. What will the cost of buying 6 CD’s be? Let x represent the number of CD’s over 5

Answer 1

If $24 represents the cost of  the 5 used CDs, than your formula would be "24+5x" ,x being the amount of extra CDs you purchase.

24+5(6-5)

24+5(1)

24+5

=29

6 CDs would cost $29

I hope thats right, goodluck^^