Why is scan scheduling also called elevator algorithm?

Can someone with my technology homework? ? i’m not very good with rulers. i need it asap though

Draw the hierarchy chart and design the logic for a program that calculates service charges for hazel's housecleaning service. the program contains housekeeping, detail loop, and end-of-job modules. the main program declares any needed global variables and constants and calls the other modules. the housekeeping module displays a prompt for and accepts a customer's last name. while the user does not enter for the name, the detail loop accepts the number of bathrooms and the number of other rooms to be cleaned. the service charge is computed as $40 plus $15 for each bathroom and $10 for each of the other rooms. the detail loop also displays the service charge and then prompts the user for the next customer's name. the end-of-job module, which executes after the user enters the sentinel value for the name, displays a message that indicates the program is complete.

In outlook how can cherie look at the details of an event that appears on the month view of her calendar? check all that apply. by switching to the detail view by switching to the week view by switching to the day view by right-clicking on the event by double-clicking on the event by highlighting the event