The mass of the Earth is about 6,000,000,000,000,000,000,000,000 kg. The mass of a human brain is about 1400 grams SHOW ALL WORK (a) What is the mass of the Earth written in scientific notation?
(b) What is the mess of a human brain in scientific notation?
(c) in comparing the measurements in Parts (a) and (b), what else must be done before a comparison is made

Walgreens sells both kleenex and nyquil. in a random sample of 5000 purchases, it was found that 1200 contained kleenex and 540 contained nyquil. these are not independent because sick people are more likely to buy both and healthy people more likely to buy neither. in looking into that, it was found that 360 purchases contained both. a. make a two-way table to display this information. fill in the table with the missing entries, and be sure your table has row and column totals. b. if we randomly select a purchase that contained kleenex, what is the probability it also contained nyquil? c. what percent of all purchases didn’t contain either product?