One week, a computer store sold a total of 32 computers and hard drives. The revenue from these sales was $20920.00. The computers sold for $950.00 per unit and the hard drives sold for $160.00 per unit. For the following problems, use x for the number of computers sold and y for the number of hard drives sold that week.
a) Write a mathematical expression for the combined number of computers and hard drives sold that week.
b) Write a mathematical expression for the amount of revenue from this week's sales.
c) How many computers did the store sell that week?

Question

One week, a computer store sold a total of 32 computers and hard drives. The revenue from these sales was $20920.00. The computers sold for $950.00 per unit and the hard drives sold for $160.00 per unit. For the following problems, use x for the number of computers sold and y for the number of hard drives sold that week.
a) Write a mathematical expression for the combined number of computers and hard drives sold that week. 
b) Write a mathematical expression for the amount of revenue from this week's sales. 
c) How many computers did the store sell that week?