Amachine can produce 250 items per hour. if the operator of the machine works 40 hours per week ,how meny items are made in one year?

Hi Tink7420vbazp! :)

250*40=Items per week
250*40
=10,000

10,000/7=Items per day
10,000/7
=1428.57143

There are 365 days in a year.
1428.57143*365
=521,428.572

The machine produces 521,428.572 items in a year.

Hope this helps!
-Benjamin

These are the multiples of 15 but what you are probably asking or what are the factors of 15