Question

a dance studio offers dunham technique classes, a style of dance that combines ballet with movements and rhythms from african and caribbean dances. the studio provides both online and in - person classes, each with a different price. the instructor is paid the same amount for each class, regardless of the type of class.
to create an equation to find the profit from online dunham technique classes, which quantities must the owner include in her equation?
the total number of classes taught, the prices of the classes, the number of students in each class, and the amount the instructor earns for each class
the total number of classes taught, the prices of the classes, and the number of students in each class
the number of online classes taught, the price of an online class, the number of students in each online class, and the amount the instructor earns for each online class

Explanation:

Profit from online classes = Total revenue from online classes - Total instructor cost for online classes. Total revenue from online classes requires the number of online classes, price per online class, and students per online class (revenue = number of classes × price × students per class). Total instructor cost requires the number of online classes and instructor earnings per class (cost = number of classes × instructor earnings per class). Thus, these quantities are necessary. Other options either include irrelevant in-person class data or exclude instructor cost.

Answer:

the number of online classes taught, the price of an online class, the number of students in each online class, and the amount the instructor earns for each online class