Using the rules of significant figures, what is the correct answer for the following mathematical equation? 23.6 - 4

In the film, zeke the zombie slayer versus the zombies from space, zeke slayed 140 zombies. in the sequel, zeke the zombie slayer versus the zombies from space, part 2, he slayed 5% more zombies. how many zombies were slain by zeke in the sequel?

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days