8n+4 because you have to add it all up
You don’t really know. Since he have paid $8 leaving and entering the store and spends half of his money every time. You never told us how much money he have left.
Perimiter=sum of all sides
x+x-4+x-4=19
3x-8=19
add 8 both sides
3x=27
divide both sides by 3
x=9 inches
x=9 in
A. Natural Numbers
B. Whole Numbers
C. Integers
