I'd seriously appreciate it if anyone could asap! i'll give brainliest! mary wants to buy a dress which costs $200 from the money she gets by working overtime. she has already saved up $50 for the dress. the following graph below shows the money she will get by working extra hours. how many extra hours does mary need to work so that she can buy the dress of her choice? 16 hours 10 hours 14 hours 12 hours

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.