A retail store must decide how many Mother's Day cards to have in stock for this year's Mother's Day. Cards must be ordered months in advance, and there is only an opporturity to order one time. The store believes that the demand tor cards will be normally distributed with a mean of 975 and a standard deviation of 35 . The cards cost the shop $1.12 each and will be sold for $3.50 apiece. Any cards remaining after Mother's Day will be destroyed. How mary cards should the retail store order for Mother's Day? Click the icon to view the table of standard nomal probabilities. The retail store should order cards for Mothers Day. (Enter your response rounded to the nearest whole number.) A compary can easily expand its service operation by adding more servers to its process. If each server is able to process 4 customers per hour and customers arrive at the company at the rate of 10 per hour, then how many servers should be employed to achieve the standard that no customer should have to wait more than 30 seconds to be served? What is the average utilization of the servers for the number of servers required to meet this service gaal? Click the icon to view the Lq values for the queuing model. The company should have at least servers to meet its service time goal. (Enter your response as a whole number.) The average time a customer must wait to be served in this case is seconds. (Enter your response rounded to two decimal places.) The average utilization of the servers in this case is (Enter your response rounded to four decimal places.)