25. compute the weakest precondition for each of the following selection constructs and their postconditions: a. if (a == b) b = 2 * a + 1 else b = 2 * a; {b > 1} b. if (x < y) x = x + 1 else x = 3 * x {x < 0} c. if (x > y) y = 2 * x + 1 else y = 3 * x - 1; {y > 3}

Imagine that you have a friend who is starting a small business and is interested in using social media to spread the word. he is not certain that it is a good move, and has come to you for . would you advise him to use social media to advertise his business? why or why not? support you answer with information from the text.

Andy would like to create a bulleted list. how should he do this? andy should click on the bullet icon or select the bullet option from the menu and then type the list. andy should press the shift key and the 8 key at the beginning of each line of text. andy should type the text and then click on the bullet command. andy should press return and the bullets will automatically

"gps interaction and cognitive process" respond to the following: imagine that you have been asked to design a gps product that will have voice recognition and bluetooth capability. discuss and conceptualize a user interaction model. predict two (2) problems that may arise in gps products with voice recognition and bluetooth capability. recommend solutions for each of these issues. attention is one of the six cognition processes. when attention is applied to a design, the goal is to make it easier for the end user to quickly locate where he / she should type information on the computer or mobile device screen. compare and contrast how the google search engine and the microsoft bing search engine employ the attention cognition process. provide your opinion as to which search engine better employs the attention cognition process and explain why.