At camp summer fun,4 campers share each other tent. the camp is expecting 331 campers. about how many tents will they need? will the number of tents they actually need to be more or less than the estimate? how do you know?

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?

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.