Acarpenter had 28 nails from previous job and needs to buy more. a store has 7 boxes of nails and each box contains 100 nails. the carpenter needs to buy at least 3 boxes. the number of nails the carpenter will have after purchasing n boxes is represented by a function. f (n) = 100n + 28what is the practical domain of the function? a) all integers from 3 to 7, inclusiveb) {328, 428, 528, 628, 728}c) all real numbers from 3 to 7, inclusived) all real numbers

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.