Stan's cookie recipe makes 2424 24 24 cookies and calls for exactly 384384 384 384 sprinkles. He is wondering how many sprinkles (p)(p) (p) left parenthesis, p, right parenthesis he will need to make 6060 60 60 cookies. He assumes each cookie will have the same number of sprinkles. How many sprinkles does Stan need to make 6060 60 60 cookies?

How do you solve a question like this?

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.

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.