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please tell me the answers to both

1)
Use the properties of vertical angles to find the value of x.
A) 3
B) 5
C) 7
D) 9
2)
What is the measure of ∠A?
A) 157°
B) 159°
C) 161°
D) 163°

please tell me the answers to both 1 Use the properties of vertical angles to find the value of x A 3 B 5 C 7 D 9 2 What is the measure of A A 157 B 159 C 161 D class=

Respuesta :

thuytrannguyen2305

Answer:

1) A

2) A

Step-by-step explanation:

1)

x+16 = 4x-5

-x          -x    

    16 = 3x-5

    +5       +5  

    21 = 3x

     3     3

     7 = x

2)

A straight line is equal to 180°

7+16=23

180-23=157

Sorry if it doesn't help for number 2

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