Answer:
31% of 72 is approximately 22.32.
Explanation:
31% of 72 is approximately 22.32. To estimate this, we can round up 31% to 30% and round down 72 to 70. 30% of 70 is 21, so we know that 31% of 72 must be somewhere between 21 and 22. Since 22.32 is closer to 22 than it is to 21, we can estimate that 31% of 72 is approximately 22.
Therefore, the best estimate for 31% of 72 is 22.