Sumalee won 40 super bouncy balls playing horseshoes at her schools game last night. later, she gave two to each of her friends. she only has 8 remaining. how many friends does she have?

Before jumping into doing this problem, it is important to look at all the information's that have been made available in the question. Based on those given conditions the answer to the problem can be easily deduced.
Let us assume the number of friends Sumalee has = x
Then
2x + 8 = 40
2x = 40 -8
2x = 32
x = 32/2
x = 16
So Sumalee has 16 friends. There are numerous ways to get to the answer that is required to be found. This is the easiest and the shortest method. Hope i helped you.

slope intercept form equation is y=mx+b

y=-2/3x+490

That should be right