Notice that
, so
Then taking the positive square root gives
so 
and 
.
Hi it is 57 is a becase use a protractor
For each bus there will be 9 students
Approximately there are some of these on the we
If you are trying to create a garden of potted plants, you would find out how much soil each pot needs/holds and multiply that by how many pots you plan to use. then you would go to the store for potting soil, which let’s say came in smaller packs and you need to purchase multiple. use multiplication estimation to estimate how many bags you’d need.
I know this is a dumb example...sorry this is one I remember from my fourth grade math teacher ahah
