A concert promoter prints T-shirts specifically for that concertdate and artist, and sells them at the concession store

[answerhappygod]

A concert promoter prints T-shirts specifically for that
concertdate and artist, and sells them at the concession store
outsidethe performance arena. The T-shirts cost $50 a piece to
makeand stock at the event. The selling price is $200 a piece, but
aroyalty of $75 has to be paid to the artist for each sale.
Anyunsold T-shirts are sold off to an online marketplace at $10
apiece. The demand for T-shirts is estimated having a mean of350
and standard deviation of 70
What is the optimal service level for the promoter?a. 65%b.
38%c. 75%d. 98%e. 50%
What is the optimal order quantity of T-shirts for the
promoter?
a. 397
b. 423
c. 420
d. 377