Tracy had 87 nickels. she used some of her nickels to buy a cookie. tracy later found 19 nickels in her backpack. now tracy has 64 nickels. how many nickels did tracy use to buy the cookie?

Which statements are true about box plots? check all that apply. they describe sets of data. they include the mean. they show the data split into four parts. they show outliers through really short “whiskers.” each section of a box plot represents 25% of the data.