Answer:
Natalie.
Step-by-step explanation:
there is a constant pattern in the cost of shirts and the number of shirts that can be bought.
for every 1 shirt you pay $15.
thus, to determine the amount you pay for 2 shirts.
2(X)=Y {y= the total cost of 'n' shirts,X= the cost of 1 shirt.}
so this can be expressed as n15=Y
3 shirts therefore will be 3($15)= $45
