At the beginning of a population study, a city had 260,000 people. Each year since, the population has grown by 2.2%. Lett be the number of years since start of the study. Let y be the city's population.
Write an exponential function showing the relationship between y and t.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.