Arecipe for krispy rice treats calls for 6 cups of rice cereal and 40 large marshmallows. you want to make a larger batch of goodies and have 9 cups of rice cereal. how many large marshmallows do you need? however, you only have the miniature marshmallows at your house. you find a list of substitution quantities on the internet that suggests 10 large marshmallows are equivalent to 1 cup miniatures. how many cups of miniatures do you need?

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.