Answer:
The number is 240
Step-by-step explanation:
Is means equals and of means multiply
30 = 12.5% * N
Change to decimal form
30 = .125 N
Divide each side by .125
30/.125 = .125N/.125
240 = N
Answer:

Step-by-step explanation:
This is an inequality ("<" -- less than sign). We can solve this as an equation solving process.
Remember the distributive property:
a(b+c) = ab + ac
This is important for right side of the equation.
Let's solve:

So x is greater than -1/5. we can write:

Answer:
A) a small variance for the difference scores and a small standard error
Step-by-step explanation:
Since the difference scores are obtained by subtracting one variable form another, if the difference scores are consistent between treatments, then the variance will be small. The higher the variance, the higher the standard error. So if the variance is small, then the standard error will also be small.
It is useful because it helps you know how many faces the prism or pyramid has