Select the correct answer. What is the solution to this system of equations?
x-2y= 15
2x+4y=-18
Ο Α.
x= 1, y=-6
OB. x= 1, y=-7
OC. x= 3, y=-6
OD. x= 3, y=-7

C I just took the test and got it right I think I go tonhr school

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

17

step-by-step explanation: