The answer is 58 hope this helps!
Answer:
If they are same side interior or same side exterior they will always add up to 180 so if you have m<7 = 131 then you subtract 131-180 and then you have the angle for one and you do it so on and so forth. If you have A corresponding angle, alternate exterior,alternate interior or a vertical angle they will be the same number at the angle given.
I can’t see 9 and 10 but the answer to 17 would be 25 yards farther