Find values of x and y for no. 19because you can't solve for x and y at the same time and 40 = 12x + 4 y.

The number of electoral votes each state is assigned is determined by the size of its population every ten years. the chart shows the number of electoral votes california was assigned each decade of the past century. what is the 3rd quartile of the data?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

50 points~ ! i have to turn this in tomarrow