REALLY EASY! I will give brainliest if you get it right and tell me how you chose it

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)