Pls help it’s timed!

The answer is m=-5/2, -5/4+m=-15/4 and m=-10/4

Step-by-step explanation:

I hope this helps.

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)

here is your mark brainliest