The introduction of automatic elevator equipment allowed firms to handle the movement of people in a multistory building at less cost, thus decreasing the demand for elevator operators. The best explanation for this change is that the Multiple Choice marginal product of elevator operators was equal to its price. marginal product of automatic elevator equipment was equal to its price. marginal product of automatic elevator equipment divided by its price was greater than that for elevator operators. marginal product of elevator operators divided by its price was greater than that for automatic elevator equipment.

The marginal product of automatic elevator equipment divided by its price was greater than that for elevator operators

Explanation:

Since in the question, it is mentioned that the automatic elevator introduction permit the firms to handle the movement of the people at least cost also it declines the demand for the operators of the elevator

This represents that the marginal product of elevator equipment would be divided by price and also it is more than for operators who are dealing in elevators

x=3

step-by-step explanation:

this is really simple i saw that there was only one term (5x) and thought if that was 15 what would i have to multiply everything else to get it there? well if 5x became 15 then x would have to be 3 so plug the 3 in the x for the other equations and you get 15 for the other ones. so there you go. : )