Final answer:
To calculate Sarah's profit, we need to determine the total revenue and total cost. The total revenue can be found by multiplying the number of eggs sold by the selling price per egg. The total cost can be found by subtracting any expenses, such as broken eggs, from the total revenue.
Step-by-step explanation:
To calculate Sarah's profit, we need to determine the total revenue and total cost. The total revenue can be found by multiplying the number of eggs sold by the selling price per egg. The total cost can be found by subtracting any expenses, such as broken eggs, from the total revenue. So the expression to calculate Sarah's profit is:
Profit = (Number of eggs sold - Number of eggs broken) × Selling price per egg
In this case, with the information given, the expression would be:
Profit = (4 + 6 + (7 - 2)) × $0.20