Maria determined that these expressions are equivalent expressions using the values of x= 3 and x=7. which statements are true? check all that apply.

this doesn't give me a reason to check off

d

step-by-step explanation:

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