<em>Shift </em>selects multiple worksheets at the same time. <em>Ctrl</em> selects all that you selected with Ctrl pressed.
Variables can be useful because they hold a certain number/data value that can easily be accessed and changed. For example, in a game, a players score is a variable that changes as the player gets more points; ie coins, items, etc.
Answer:
Explanation:
a binary number is a number expressed in the base-2 numeral system or binary numeral system
Computer simulation is just like training for example before pilot fly plane they got training from computer simulation it's just like video lecture
