Final answer:
The correct expression that means '3 less than the quotient of a number and 7' is 'x/7 - 3', which is option C.
Step-by-step explanation:
Finding the Correct Expression
To find the expression that means "3 less than the quotient of a number and 7," let's break down the question step by step:
- The quotient of a number and 7 is expressed as x/7, where 'x' is the number.
- To represent '3 less than' this quotient, we subtract 3 from the quotient, resulting in x/7 - 3.
Therefore, the correct expression is C. x/7 - 3.
This example illustrates the importance of understanding expressions, negative exponents, and simple arithmetic operations involving addition, subtraction, and division.