2x + 4y = 60 x + 4y = 36 a. x = 11, y = -8 b. x = 2, y = 16 c. x = -8, y = 11 d. x = 8, y = 7

C.  x=-8, y= 11

Step-by-step explanation:

-2x+4y= 60

-2 (-8) + 4 (11)= 60

16+44= 60

60= 60

x+4y= 36

-8 + 4(11)= 36

-8 + 44= 36

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)