Answer:
19v
Step-by-step explanation:
3v, 7v, and 9v all have the same variable, therefor, you can add all of them up as you would regular numbers, you just have to add "v" at the end.
Answer: The correct option is (C) 
Step-by-step explanation: We are given to choose the correct simplification for the following expression :

We will be using the following property of exponents :

So, the simplification of expression (i) is as follows :

Thus, the correct simplification of the given expression is 
Option (C) is CORRECT.
Answer:
H=-12
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
h/6-1=-3
1/6h+-1=-3
1/6h-1=-3
Step 2: Add 1 to both sides.
1/6h+1=-3+1
1/6h=-2
Step 3: Multiply both sides by 6.
6*(1/6h)=6*(-2)
H=-12
Hope this helps
Answer:
a^2+11a+30
(a+5)(a+6)
Let me know if this helps!