Integers can only be whole numbers, so she should have said that negative WHOLE numbers are integers.
Answer:
6
Step-by-step explanation:
By the exterior angle theorem,
(4x - 4) + 40 = 60
4x - 4 = 20
4x = 24
x = 6
You would need a reflection to create the same shape because a reflection is a flip meaning that the one in the front is showing the reflection