Answer:
13
Step-by-step explanation:
I used the calculator heheh
Hope It Helps
Answer:
10
Step-by-step explanation:
The current probability of picking a red ball is
. When 5 more balls are added, the probability is 3/4. We can write a ratio for this problem:

When using cross multiplication to solve this, you get 3 * 20 = 4(x+5).
60 = 4x + 20
40 = 4x
x = 10 red balls
Oh no my parrot is missing
Answer:

Step-by-step explanation:
Hello!
A trinomial is a expression consisting of three different terms
To turn this into a trinomial we multiply everything to each other
<u> 3x </u>
3x * x = 
3x * 10 = 30x
<u> 8 </u>
8 * x = 8x
8 * 10 = 80
Now we put them all together in an equation

Combine like terms

The answer is 
Hope this helps!