Correct answer only the graph shows the solution to which system of equations? a) y = x + 2 and y = -x - 4 b) y = 3x + 7 and y = x + 12 c) y = 2x - 3 and y = −2x + 1 d) y = -x + 4 and y = −2x + 5

The answer is, C) y=2x-3 and y=-2x+1

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post