Solve the equation 15s-100=350 to find the number of t shirts Rory sold

s=30

Step-by-step explanation:

15s-100=350 =>15s=350+100 =>15s=450 => s=450/15 = 30 => s=30

 we shine together  

he sold 30 shirts s=30

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