Final answer:
The expression that is 3 times as large as the expression 610-97 is 3×(610-97).
Step-by-step explanation:
To determine which expression is 3 times as large as the expression 610-97, we need to multiply the expression 610-97 by 3. The correct expression would be option a. 3×(610-97).
In this case, 610-97 is equal to 513. Therefore, 3 times 513 is equal to 1539. So, the expression 3×(610-97) is 3 times as large as the expression 610-97.