First of all, you would use the FOIL method for -5(a + 3). This means to just multiply -5 to all of the values in the parenthesis. This would equal:
-5a -15 = -55
Then after, you would add 15 for both sides and get -5a = -40
Divide by -5 on both sides, you get a = 8.
Here is a visual representation: https://puu.sh/zPxLC/a16740d0ce.png
I think the correct answer would be : p = -n+4m/L
I hope this helps !
Answer:
80
Step-by-step explanation:
Answer:
You can calculate the area of the circle
We know the formula is: 
And if diammeter is 800, then the radio is a half: 400
We replace:
feet
So now we can divide:
502654/1000 = 502,654 minutes
Ok, there is an equation you can use to solve it.
n is a number.
p is also a number, but different to n.


Therefore:
<u></u>

So all together there were 54 girls and 42 boys in the theatre.
54 + 42 = 96
That's 96 children in total. (Answer)
7:9 = 42:54