To find the best estimate of the number of notices Kaylee must fold each day, we can divide the total number of notices (586) by the number of days (22).
To simplify the calculation for estimation:
- We can round 586 to 600 (which makes the division easier).
- We can round 22 to 20 (to simplify calculations).
So the expression for our estimate would be \( 600 \div 20 \).
Thus, the correct response is:
600 ÷ 20