Final answer:
The number of rows in a truth table depends on the number of variables, and is determined by 2^n, where n is the number of variables.
Step-by-step explanation:
In a truth table, the number of rows depends on the number of variables or propositions being analyzed. Each row represents a different combination of truth values for the variables. The number of rows in a truth table is determined by 2^n, where n is the number of variables. For example, if you have 2 variables, there will be 2^2 = 4 rows in the truth table. If you have 3 variables, there will be 2^3 = 8 rows, and so on.