The first half of the equation would be the 3 t-shirts, so (3 x 6). The second half would be the other four, so (4 x 5). Since he bought both of those amounts together you would add them together. The final equation is (3 x 6) + (4 x 5)
(3x6) + (4x5) = 38 because 3 t-shirts were $6 each so we multiply and the same for 4 t-shirts that were $5 dollars each, then we add it up with this equation and get 38
