Answer:
I am about 95% sure that this is what they want. P.s (sorry I cant put the divide symbol)
The variable is the number of shirts she bought or x
and the equation is (375+50) divided by (15+2) = x
in the solve spot put
(375+50) divided by (15+2)=x
425 divided by 17=x
x=25
Then your answer would be 25
Explanation:
first add 50 to 375 so you get the full price which will give you 425. then to find out how many shirts she bought you must add 2 to 15 to get 17. then divide 425 by 17 which is 25. so she bought 25 shirts.