126×(−55)+126×5 STEP explanation

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?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters