Find x then use x to find y

Please help I am really stuck!

probability for j is 1/4

while

a is 1/6

15: 24

62.5%

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

the answer would be 0.54