Answer:
You have to make an equation
Make everything equal to 180 degrees because a triangle makes 180 degrees
If you need more help I can assist you
Step-by-step explanation:
1.
Answer:
m∠A = 31
b = 13.3
Step-by-step explanation:
First, multiply. 7x-14-4x+9. Now, add the like terms. 3x-5.