An on-demand publisher charges $20.50 to print a 700 page book and $18.50 to print a 500 page book. find a linear function which models the cost of a book c as a function of the number of pages p. interpret the slope of the linear function and find c(0).

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3