Help plz plz question is on picture ​

14 miles, I think.

Step-by-step explanation:

First, you add 20.6 + 15.4 = 36.

Next, you subtract, 50 - 36 = 14 to get the value of m.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°