what are the values of a and b? if you can give an explanation that'd be great cause I don't really get this stuff

isn't it a pentagon? sense [3 (triangle) + 4 (rectangle)] - 2 (triangle and rectangle connected) = 5 (pentagon)

add -60 to 120 which will result in : 2x+3y=180

then subtract 2x: 3y=-2x+180

lastly, divide by 2: y= -2/3x+60

hope this is the answer you're looking for: )

the answer is c i hope you got it right because i did do some math over this, just not sure how to upload.