7x + 2y = -19 -x + 2y = 21

X=

Y =

Is this a polynomial function? i need to know asap

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew