Final answer:
The expression that shows how much Mr. Smith will earn in a day is e = 60c + 75. The expression consists of two parts: $60 for each car sold (which is represented by 60c) and a base amount of $75 per day.
Step-by-step explanation:
The expression that shows how much Mr. Smith will earn in a day is option B. e = 60c + 75.
The expression consists of two parts: $60 for each car sold (which is represented by 60c) and a base amount of $75 per day.
For example, if Mr. Smith sells 3 cars in a day, using the expression e = 60c + 75, his total earnings for the day would be: e = 60 * 3 + 75 = $195.