Respuesta :
Answer 18 (a)
First we need to find out the cost of one CD
We can do that by 30/5 =6
One CD cost 6 $
But the questions ask the cost of 3 CD
So the price for 3 CD is 18
First we need to find out the cost of one CD
We can do that by 30/5 =6
One CD cost 6 $
But the questions ask the cost of 3 CD
So the price for 3 CD is 18