Answer:
x = -2
Step-by-step explanation:





I think you worded that a little wrong
She didn’t notice that the 3 and the 4 both do not have the variable “n” with them
She just added up all the numbers together then added the variable at the end.
By telling if the shape has four sides
Answer:

Step-by-step explanation:
Given
See attachment for complete question
Required
Determine the difference between the shortest and the longest
This question implies that we calculate the range.

From the table, we have:


So, we have:

