1. Linear Pair Postulate
2. MAngle 3
3.Angle 3
4.Angle Congruence Postulate
Hope this helps!
-Soul
Answer:
-0.75
Step-by-step explanation:
C= 20-0.75x
c= 20-0.75(9)
c= 20-6.75
c= 13.25
Here c is the amount of change and x is the number of books bought.
The customer's change will be $13.25
8x=24 which is 3 so x = 3
4y=24 which is 6 so y = 6
(3,0) for x and (0,6) for y
