Answer:
Option B, 22
Step-by-step explanation:
Alternate interior angles are same
The angle does not matter. Think of it as finding the other side to a triangle. Use

a=39 (line AB)
b=b (the leg we need to find)
c=89 (line BD)


(subtract the 1521 from both sides)

(square root both sides)

b = 80
AD=80
Answer
an=a1+(n-1)d
Step-by-step explanation:
a2-a=9_2=7
a3-a2=16-9=7
a4-a3=23-16=7
a5-a4=30-23=7
1. false because they have the same slope and y-intercept so they have infinite number of solutions
2. true
Answer:
$6.79
Step-by-step explanation: