The post office needs to send out 1,500 letters a day to stay on top of the deliveries. after an entire year how many letters will the post office have sent out?

547,500 letters

Step-by-step explanation:

Assuming the post office sends out letter every single day of the year:

Everyday the post office sends out 1500 letters

In a year, they will send out 1500 TIMES the number of days in a year.

We know there are 365 days in a year, and if the post office works EVERY SINGLE DAY, they will send out:

1500 * 365 = 547,500 letters (in a year)

Hence,

Total (in a year) = 547,500 letters