Answer:
⇒ 
Step-by-step explanation:
Answer:
x = 60°
Step-by-step explanation:
G= 90°
30 + 90 = 120
180 - 120 = 60
I think question statement c is false about proof
Answer:

Step-by-step explanation:
1) Evaluate the exponent:

2) Multiply the numbers:

Answer: a = 4/3
Step-by-step explanation:
1. a/4 − 5/6= −1/2 convert -1/2 to -3/6
2. a/4 = 5/6 - 3/6 = 2/6 = 1/3
3. a = 4*2/6 = 4*1/3
4. a = 4/3