Question

Maria wants to add to her CD collection. If a CD costs $9, which expression shows the cost of CDs?

A.
9 + d
B.
9 × d
C.
9 ÷ d
D.
9 - d

Answer 1

I think that it’s that because she paid $9 so she has no more money if she had $9

Answer 2

B. 9xd

Explanation:

Each CD costs $9 therefore to find total cost you multiply the cost of each CD (price) X the number of CDs you buy (quantity).

ex.

1 CD = $9 x 1 = $9

2 CDs = $9x 2 = $18

3 CDs = $9 x 3 = $27

...and so on.

I hope this helps!