Please help I’ll mark you as brainliest if correct!

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?