Elena works 4 hours for 100 dollars what is the rate to dollars to hours?

Simplify the expression below -3(10x+4y)+6(6x-2y)

Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13

Figure abcd is a trapezoid with point a (0, -4). what rule would rotate the figure 270° clockwise, and what coordinate would be the output for point a'?