Language spoken at home by the u. s. population in 2014 the percentage of the u. s. population that speak english only in the home is 78.9%. choose 15 us people at random. what is the probability that exactly one-third of them speak english only? at least one-third? what is the probability that at least 9 do not speak english in the home?

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?