In a survey of 455 people, 63% said they have an iphone. about how many people surveyed have an iphone?

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?

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

What is the perimeter of a rectangle if the length is 5 and the width is x?