When a person buys something from an app store, the cost of the item is charged to a credit card whose number often is known by the app store. on what type of device is the credit card number kept by the app store?

What characteristic of long period comets suggest they come directly from the oort cloud?

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.

Which of the following is not a key player in the sale of travel products?