$3.15 would be the cost, after the mark up is added.
Answer:
72.5
Step-by-step explanation:
A. 8 books on each shelf
B. 4 shelves for mystery, 7 shelves for biography
Answer:
0.6844 is the required probability.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = $1,250
Standard Deviation, σ = $125
We are given that the distribution of daily sales is a bell like shaped distribution that is a normal distribution.
Formula:
We have to find
P(sales less than $1,310)
Calculation the value from standard normal z table, we have,

0.6844 is the probability that sales on a given day at this store are less than $1,310.