Aused electronics store pays $50 for each cell phone, spends $15 refurbishing the phone, and sells the refurbished phone to a customer for $120.

a. write an expression in simplest form that represents the company's earnings (in dollars) from buying, processing, and selling cell phones. use x to represent the number of cell phones they sell.

an expression is ( ) dollars.

question 2
b. what does the coefficient of the expression in part (a) represent?

- the total number of phones the company sells

- the amount (in dollars) the customer loses from each phone

- the amount (in dollars) the company earns from each phone

- the amount (in dollars) the company spends on each phone