Question

Olivia download music for $1.89 per song. She has a credit on her account for $3. Which expression could be used to represent the cost of the music if Olivia downloads m songs?

Answer 1

Answer 3 (1.89m - 3)

Explanation:

Since we know that the price per song is $1.89, that is going to be the part of the equation that goes with the variable.

Since she has a 3 dollar credit, this will reduce the cost of whatever amount of songs she is buying by 3 dollars, which means the second part of the equation is -3. You have your answer, 1.89m - 3.