While in math class, Trunks is called on to solve a math problem: (1000 - 900 * 0.5). Trunks attempts to subtract 900 from 1000 first, but Pilaf interrupts him and correctly states that he must multiply 900 by 0.5 first then subtract the result from 1000. To make his point more tangible, Pilaf uses an example involving a sale.
Penny started a business that sells flower barrettes called Penny Blossoms. Penny asks Sheldon to help her improve her manufacturing process, so they sing while working in order to increase productivity.
Marcus visits a high end dog food store that calls itself the "Trader Joes" of dog food. He offers advice on how they can change their marketing techniques and reverse the companies debt. He changes the store's method in order to grow profits.