The number of kilograms of water in a human body varies directly as the mass of the body. a 93 kg person contains 62 kg of water. how many kg of water in a 78 kg person?

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?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

What is the solution to the system of equations? y=1.5-3 y=-x