Final answer:
The total revenue is calculated by multiplying the price per unit by the number of units sold. In this case, the total revenue for selling 80 razors for $7,200 cash is D) $7,200.
Step-by-step explanation:
To calculate the total revenue, we need to multiply the price per unit by the number of units sold. In this case, 80 razors were sold for $7,200 cash. So the total revenue is:
Total Revenue = Price per Unit x Number of Units Sold
Total Revenue = $7,200
Therefore, the correct answer is (a) $7,200.