How do you do this please provide a step by step explanation. answer is already provided just do not know how to do it$.$

Food Goblin Supermarkets use both cashiers and baggers to serve customers at check out. During the first $5$ hours of

each workday $($Monday$-$Friday$),5$ cashiers and $3$ baggers serve approximately $22$ customers per hour. A cashier and a

bagger who require approximately $5$ minutes at checkout and $4$ minutes at bagging serve each customer.

a$.$ The utilization of cashiers is $,36\mathrm{.}7\%.($Enter your response rounded to one decimal place.$)$

The utilization of baggers is $48\mathrm{.}9\%.($Enter your response rounded to one decimal place.$)$

b$.$ Assume that both baggers and cashiers are cross$-$trained to perform both activities so that they can serve customers

independently. Customers are now both checked and their groceries bagged by one individual. Further, assume that it

takes $10$ minutes for one individual to both cash out and bag each customer's groceries. Calculate the utilization of this

new group of $8$ cross$-$trained employees.

The utilization of a cross$-$trained employees is $45\mathrm{.}8\%.($Enter your response rounded to one decimal place.$)$