<u>Answer:</u>

<u>Step-by-step explanation:</u>
We are given the following expression and we are to simplify it:

To make it easier to solve, we can also write this expression as:

Now we will cancel out the like terms to get:

Taking the square root of the terms to get:


Answer:
Step-by-step explanation:
H=2/3
Answer/Step-by-step explanation:
3. By substitution method, let's substitute
for y in the first equation.
Thus,
Solve for x

Add 4 to both sides




Multiply both sides by 3


Divide both sides by 5

Now, substitute 3 for x in the equation.




The solution of the equation is x = 3, y = -2
4. Solving by elimination, let's try to eliminate the x-variable by adding both equation together.


=> 
Divide both sides by -3 to solve for y


Substitute -5 for y in the first equation to find x


Subtract 10 from both sides


Divide both sides by 3


The solution is 
25/30 because there are 25 blue ones and 30 green ones
Answer:
Step-by-step explanation:
you take 30% and 10% and turn them into decimal like so:
30/100=0.3
10/100=0.1
400.00(0.3)=120.00
120(0.1)=12