PROBLEM SOLVING The path of a diver is modeled by the function f(x) = -9x2 + 9x +1, where f(x) is the height of the diver (in meters) above the water and x is the horizontal distance (in meters)

from the end of the diving board.

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?

Icould really use some with this question.

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.