Answer:

Step-by-step explanation:
is the equation for 4 sides.
divide the entire equation by 4 to get:

Answer:
Step-by-step explanation:
I think your supposed to add all those numbers together
Answer:
50
Step-by-step explanation:
(2+3=5) +5 = 10
6+7 = 13
8+9=17
10
Then add them all together:
10+13+17+10=50
Its a monomial and it has 4 terms