A county fair charges an entry fee of $7 and $0.75 for each ride token. You have $15
Write an expression that represents the amount (in dollars) you have left after entering
the fair and purchasing n tokens. How much money do you have left after purchasing 6 tokens?

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.