Three different two digit numbers total is 286.what is the smallest of the three numbers

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?

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?

Ineed here’s a picture of the question