Ms. Holly had a gift card with a $375 balance. She bought several CDs that cost $17 each. After the purchase, her gift card balance was $239. Which equation can be used to determine the number of
CDs, d, she purchased?

D x 17 = 239  

Step-by-step explanation:

 375-239 = 136$ left

y > 1/3x

y < = -x + 4

hope this : )

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads