66.6666666...% of his total mixture is water because 20/30 simplifies to 2/3
2/3= 0.66666666666...
0.66666666666... in percent form is 66.6666666...%
<em>Please note that I'm not 100% sure on this question!</em>
Answer:

Step-by-step explanation:
The ball pit was originally 10 × 12 feet long, or a 120ft area.
We can express the areas of the side and bottom extensions as
and
respectively.
The corner adjacent to both extensions can be expressed as
.
We can put these numbers into a polynomial:

This polynomial can then be simplified.

Not sure but i guess 25 %ile is 55/4=13.75 and 80%ile=80*55/100=44
Answer:
10/9
Step-by-step explanation:
average rate of change in 0≤x≤9
=(3-(-7))/(9-0)=10/9
Answer:
Answer: C
Step-by-step explanation:
Start with 20.50 then subtract 4.00. then, keep subtracting 2.75