Greg earns $18.50 per hour. greg’s parents tell him if he works more than 60 hours may, they will buy him a new lawnmower. in the month of may, greg earns $1387.50. are greg’s parents going to buy greg new lawnmower?

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.