Which of the following is a term for the process of taking a complex system apart and identifying each of its underlying elements? A. top-down approach
B. left-right approach
C. value-idea approach
D. bottom-up approach

Ryan is working on the layout of her web page. she needs to figure out where her header, navigation bar, text, and images should go. what technique can her?

Write a program that prompts the user to input a string. the program then uses the function substr to remove all the vowels from the string. for example, if str = "there", then after removing all the vowels, str = "thr". after removing all the vowels, output the string. your program must contain a function to remove all the vowels and a function to determine whether a character is a vowel.

How do we use the sumif formula (when dealing with different formats) ?