Question

at a school, an office has 7 chairs. a classroom has 3 times as many chairs as the office. how many chairs
□ chairs

Explanation:

Step1: Identify the number of office chairs

The office has 7 chairs.

Step2: Calculate classroom chairs (3 times office)

To find the number of chairs in the classroom, we multiply the number of chairs in the office by 3. So, $7\times3 = 21$.

Answer:

21