9...
75 + 6 = 81
The square root of 81 = 9
Answer:

Step-by-step explanation:
Given


Required
Write the equation of the function 
Express the function as:

In: 

--- (1)
In 

--- (2)
Divide (2) by (1)






Substitute 5/6 for b in (1)






The function: 

Perimeter is the length around an object
9514 1404 393
Answer:
(b) (1, 1/6)
Step-by-step explanation:
The "unit rate" is always the y-value for x=1 when the relationship is proportional (as it is here).
That point is not specifically shown on the graph. It would be (1, 1/6).
Answer: 5x+16
Step-by-step explanation:
Distribute
2x+12 + 3x + 4
Add like terms
5x+16