A person is using a new tennis ball launching machine that is 15 inches by 15 inches by 14 inches. assuming the machine uses tennis balls that are spherical and 2.5 inches in diameter, how many tennis balls should fit in the top of the machine?

(40 points) i need some . an answer definition is appreciated as well.

Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?

What is the y-intercept of the line given by the equation