There are seven cards labeled 1 through 7. One card is randomly selected. What is the probability the card selected will be a 2 or a 3?

This doesn’t make sense to me it’s supposed to be lcm ( least common multiple )

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?