Melony makes $21 of profit every time she sells 3 shirts and four times as much profit when she sells two pairs of sandals. How much profit will she make if she sells 7 shirts and 3 pairs of sandals?
Melony makes $21 * 4 = $<T>multiply(21, 4)=84 of profit for two pairs of sandals.
Melony makes $84 / 2 pairs = $<T>divide(84, 2)=42.0 of profit per pair of shoes.
Melony makes $21 / 3 shirts = $<T>divide(21, 3)=7.0 of profit per shirt.
For seven shirts, Melony will make 7 shirts * $7 = $<T>multiply(7, 7)=49 of profit.
For three pairs of sandals, Melony will make 3 pairs * $42/pair = $<T>multiply(3, 42)=126 of profit.
Melony will make a total of $49 + $126 = $<T>add(49, 126)=175 of profit.
