Question

A cd costs $14.95. This is $7.55 less than the cost of a dvd. Write and solve a subtraction equation to find the cost of the did

Answer 1

Since the dvd is $7.55 "Less" than the CD you should add.
$14.95+$7.55=$22.5
That's your answer to how much the dvd is.
If you have to subtract  it 
Write it like this  $22.5-$7.55=$14.95