The offer is that if you buy one shirt, the second one will be 40% off the total price and so to calculate the total cost of the two shirts you just have to do the next equation:
X is the price of each shirt.
Y is the total cost.
Y= 2x-.40x
y=1.6 x
y= 1.6(29)
y=46,4
The total cost of the two shirts would be 46,4 dollars.
