You buy 20 fluid ounces of shampoo for $4.40 or 24 fluid ounces for $4.80. which is the better buy? p. s. can u show me the formula? this is a unit rate problem.

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air