Which non-touchscreen input device would be most convenient to use for a computer on an airplane? O a corded mouse
O a trackpad
O a trackball
O a regular desktop wireless mouse

Jill wants to become a network professional. which certification would be useful for her? a. mcse b. pmp c. comptia a+ d. ccie

Python write an expression that executes the loop body as long as the user enters a non-negative number. note: if the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "program end never reached." the system doesn't print the test case that caused the reported message. sample outputs with inputs: 9 5 2 -1

Idon understand these and need some ! ?