Answer:
2b+148 = 180
Step-by-step explanation:
The three angles form a straight line so they add to 180
b+148+b = 180
Combine like terms
sum of angles on a straight line = 180
b + b + 148 = 180
2b + 148 = 180
The answer is 0.0004025
The answer is A
The answer is: 15m + 20n
Hope this helped