Answer:
40 girls 20 boys i think / guess
Step-by-step explanation:
B) 2/5
I think, if a and b are the same (coz then they would both equal 0.2)
Answer:
14x²-12y²
Step-by-step explanation:
First we distribute

into

and

.


That makes the left side of the equation

Now we subtract

from

, which makes

Now the equation is

Our goal is to isolate

, so we both sides by 30
That will make the equation

We multiply -1 on both sides of the equation:

Finally we simplify

, which makes
So the answer is
Answer:
b
Step-by-step explanation: