What is 209 rounded to the nearest ten and hundred

For this case we have the following definitions:

tens place: number of two digits greater than zero

hundreds place: three-digit number greater than zero

In both cases we must round when the previous number is greater than or equal to five.

We then have the following number:

209

Rounding off we have:

to the nearest ten = 210

to the nearest hundred = 200

The rounded number 209 is:

to the nearest ten = 210

to the nearest hundred = 200

answer:

B. This sample includes only those students who use the library.

Step-by-step explanation:

E. This sample is a random sample.