Academy sporting goods store sells two different models of a popular fitness tracker. In one month the store sold 42 trackers for a total of
$6574. Model A costs $127 and Model B costs $189. How many of
each type of tracker was sold?

please help its applying systems and i suck at word problems !!

Which statement about the relative areas of triangle abd and triangle xyz is true

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

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