Assuming that a guest sends a request to a hotel desk for room reservation, draw a context diagram. Also consider the restaurant and hotel management in the diagram

Write a javascript program that reads three integers named start, end, and divisor from three text fields. your program must output to a div all the integers between start and end, inclusive, that are evenly divisible by divisor. the output integers must be separated by spaces. for example, if a user entered 17, 30, and 5, your program would output "20 25 30" (without the quotes) because those are the only integers between 17 and 30 (including 17 and 30) that are evenly divisible by 5.

Which of the following has not been attributed at least in part to social media a. drug addiction b. depression c. kidnapping d. murder

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?