Which triangle congruence theorem proves the triangles below are congruent? please help i have an F in this class already

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

X+y=-4 x-y=2 use elimination with adding and subtraction

The function below is written in vertex form or intercept form. rewrite them in standard form and show your work. y = (x+4)(x+3)