Calvin went to the candy store. Chocolate candy costs 50 cents each and gum cost 25 cents each. Calvin bought 2/3 as much gum as candy and spent $4. How many candies did he buy? How much gum?

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What is negative 3/9 times negative 2/8 ?

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.