We know that the sum of the interior angles of a triangle equals 180, then,in this case we have the following equation:

then, solving for b, we get:

now that we have that b = 41, we can find the measure of each angle:
Answer:
Equation to solve this: 50.5-20.7=a number
Answer: 29.8
Step-by-step explanation:
I'm sending you two screenshots of the explanation I hope this helps.
The second one would be 4 inches.
Answer:
−(3x−2)(7x+4)
Step-by-step explanation: