You have to write more for me to solve the question

Multiply -7 to both sides:
Add 10 to both sides:
Divide 2 to both sides:
Answer:
90°
Step-by-step explanation:
180-124=56 so angle a is 56 and a=c so c would also be 56 next you'd have to add the right angle with angle c. 90+56=146 then to get the angle for b you would have to subtract 180-146 which is 34
34+56=90°
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Answer: Top right and left are ACUTE, Bottom right is RIGHT, and bottom left is OBTUSE.