Don & Moe's Pizza operates a small chain of restaurants in the Southwest. Its owners, Don and Moe, have been struggling for ways to make more oney during the slowest parts of the week. Research has shown that Tuesday, Wednesday and Thursday nights are the slowest $--$ pizza sales can be as muchas $40\%$ lower on those evenings as compared to busy nights like Friday and Saturday $($and Sundays, where people like to get pizzas for the game$($s$)).$

Moe, who took ACT $202$ with Professor Carstensen, figured that they could run a special on those evenings. The "Moe Betta Special" would give customers a large pizza for $$8\mathrm{.}99,$ as long as the customer picked up the pizza themselves. Don, who went to Palomar, thinks the idea is crazy: a large normally sells for $$16\mathrm{.}99.$