Answer:
(7,4)
Step-by-step explanation:
The midpoint formula is:

Let (5,6) be x₁ and y₁ and let's let (9,2) be x₂ and y₂. Thus, the midpoint is:

Add:

Divide by 2:

So, our midpoint is (7,4).
And we're done!
Answer:
Step-by-step explanation:
total cost= c
containers of slime=s
c=5s+10
2x + 9 = 35
-9 -9
2x = 26
x = 13
Strong positive because the line is going up and the dots are pretty close together