Problem $5$

A store advertises that it will take $"150\%$ off" the price of all merchandise. What should happen when you go to the checkout to buy a $$150$ item?

$($a$)$ $$50$

$($b$)$ $$75$

$($c$)$ $$0($free$)$

$($d$)$ Customer will get $$75$ from the store.