Hamish and harry work as plumbers. harry earns a dollar more than the amount hamish earns per hour. the amount harry earns per hour is less than the amount hamish earns per hour. how much does each of them earn per hour?

Find the difference (8ab+a+2) - (3ab+6)

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

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