enerate relational algebra expressions for the following queries on : (a) List all hotels with their names, cities, and states. (b) List all hotel names and street addresses in Alaska (you can use state=’AK’). (c) List all hotel rooms with a nightly price less than $40 in Pacific Northwest (i. e., in Idaho, Oregon, and Washington states). (d) List all the guest names for the bookings in March 2020. (e) List all the guests who stayed in an ‘Executive Suite’ but paid less than $100 per night. (f) List all the guests (names) who stayed in a hotel in the same state they reside. (g) List all the guests who stayed in all the h

Design a class tictactoe that: holds the following information about the game: two-dimensional array (3 by 3), and winner. add additional variables as needed. includes the functions to perform the various operations on objects. for example, function to print the board, getting the move, checking if move is valid, determining if there is a winner after each move. add additional operations as needed. includes constructor(s). write the functions of the class, and write a program that uses the class. the program should declare an object of type tictactoe. the program will create the board and store it in the array. the program will allow two players to play the tic-tac-toe game. after every valid move update the array, check if there is a winner. if there is no winner and no tie, then print the board again to continue.

Technician a says engine assemblies can be mounted longitudinally in a chassis. technician b says engine assemblies can be mounted transversely in a chassis. who is correct?

Lakendra finished working on her monthly report. in looking it over, she saw that it had large blocks of white space. what steps could lakendra take to reduce the amount of white space?