. Mark wants to measure the length of his room. Should he use an inch ruler or a yardstick?

Yarkstcik

Step-by-step explanation:

I would say yardstick becuase it just makes more sense. Its biggger and larger and you will get a better measurement.

Final number is 17000.

Step-by-step explanation:

Given  : Rachael rounded 16,473 to the nearest hundred. then she rounded her answer to the nearest thousand.

To find : what is the final number.

Solution : We have given 16,473

For nearest hundred :

Identify the hundred digit 4 in 16,473

Identify the next smallest place value 7 in 16,473

We can the digit greater than five, so it would be rounded up

The  thousands increased by 1 and Every digit after becomes zero.

Number become 16,500

Now for nearest thousand.

Identify the thousand digit 6  in 16,500

Identify the next smallest place value 5 in 16,500

We can the digit equal to five, so it would be rounded up

The  thousands increased by 1 and Every digit after becomes zero.

Number become 17000.

Therefore, Final number is 17000.