Aphone company charges $0.06 per minute for local calls and $0.15 per minute for international calls. when your bill comes, it states that you accumulated 852 minutes with a charge of $69.84. write and solve a system of linear equations to find the number of local and international minutes used.

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What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

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.

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left