Answer:
is there an image or something idk the vid
I think it’s 1.7444921e+26
Answer:
C
Step-by-step explanation:
You can plug in each combination to see what would work
C is the only combination that satisfies all the constraints: it earns him more than $800 and is less than 120 plates.
Given that normally distributed data set has a mean of 55 and 99.7% of data fall between 47.5 and 62.5.
Let s be the standard deviation of data set.
Since 99.7% data fall within 3 standard deviations of mean, z-value for 47.5 and 62.5 has an absolute value of 3.
That is |z|=3
But z= 
Let us plugin x=47.5 and mean =55 and equate it to 3.
That is 

Since x is always positive ( being standard deviation), 
Hence 

We will get same value with 62.5 as well.
Hence standard deviation of data set is 2.5.
The cost of one bus ride is 2% of the initial value of pass.
Step-by-step explanation:
Initial value of pass = $90
Cost of one ride = $1.80
Cost percent of one ride = 

The cost of one bus ride is 2% of the initial value of pass.
Keywords: percentage, division
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