7/50 is in its simplest form because 7 is a prime number and it is not divisible by any number except 7 or 1
Answer:
A
Step-by-step explanation:
There answer

Hmmm... Strange very very strange. The bars around the w represent absolute value, and whatever is inside those bars always yields a positive answer. So, |-87| = 87 or |-8| = 8 or even |5|=5
Answer:
2.0
Step-by-step explanation:
Couldn't really understnd what you wrote but I'll assume it's the standard deviation of a fair, 7-sided die
The standard deviation is just the square root of the variance (which is just the second moment minus the first moment squared)
The first moment (AKA the average is..)

The second moment is..


Answer:
Step-by-step explanation:
All I know is x is 20 and y is $48.75 sorry.