The expression 1.50s + 75b predicts the end-of-year value of a financial portfolio where s is the value of stocks and b is the value of bonds in the portfolio at the
beginning of the year. What is the predicted end-of-year value of a portfolio that
begins the year with $200 in stocks and $100 in bonds?

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.