Hiking boots cost $99.55 they are on sale for $15.18 off. what is the percent of discount

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.