Answer:
4
Step-by-step explanation:
Distribute the 2 to the X and 7
4+2x+14=26
2x+18 =26
minus the 18 from 26
2x = 8
divide 2x and 8 by 2
X= 4
DF = 3
m<B = 28 degrees
Hope that helps!
A
17 miles
85 - 68
17