PROBLEM 1
Evaluate the expression 9 – z when z = 4.
What’s the answer

hope this helps you.

There is no polygon having interior angles whose measures total 500 degrees.

The sum of the interior angles of a polygon with n sides is equal to 180∘×(n−2).
So, If there is a polygon whose interior angles total 500 degrees, then

180∘×(n−2)=500
∴n−2=500∘180∘=2.78
∴n=4.78

Since n is not a whole number, there is no such polygon whose interior angles total 500 degrees.