In Scratch, when working on your Space Invaders game, you needed to add blocks that kept track of when the ship gets hit by an enemy. This means that you need to create a variable to keep track of what? how many lasers the ship has
how many lives the ship has left
how many times the ship has broadcast a laser sound
how many enemies have appeared

Which of the following is true of operations within a spreadsheet program’s built-in functions? a. operations within parentheses, then multiplication and division, and then addition and subtraction are computed. b. operations within parentheses, then addition and subtraction, and then multiplication and division are computed. c. multiplication and division, then addition and subtraction, and then operations within parentheses are computed. d. addition and subtraction, then multiplication and division, and then operations within parentheses are computed

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

What is the term for water wave that is created by an underwater earthquake