Answer: 0.60
Step-by-step explanation:
Given: Mean : 
Standard deviation : 
The formula to calculate z is given by :-

For x= 20 minutes

The P Value =
Hence, the probability that a randomly selected shopper will spend less than 20 minutes in the store= 0.60
Answer:6
Step-by-step explanation:
Why if 1/6 you have to 1 x 6 in Older to get 6
Answer:
You can solve one by... it's hard to explain So i'll just show you
Step-by-step explanation:
Here's an example,
2x+7=4+5x
First you subtract the variables on both sides (lower variable)
2x+7=4+5x
-2x -2x
Which will leave you
7=4+3x
The subtract the whole number on each side (lower number)
7=4+3x
-4 -4
Which will leave you
3=+3x
Then you divide on both sides
3/3 3/3
which should leave you
x=1
Answer: The slope is m= 1/2
You can find the slope using slope intercept form which is y=mx+b.
Hope I could help! :)
The area is 288 units squared, or D. 72 times 4 equals 288.