One bedroom of our house is 1,200 cubic meters. we know that there are 2.8 x 10" particles of dust per cubic meter. write how many particles of dust there are in the bedroom of our house ? ? pls

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Me. i can't figure out this question. give an explanation too. .

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%