Find the sample variance and standard deviation. 6, 52, 16, 51, 35, 23, 28, 28, 32, 26

Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?