Answer:
your welcome
Step-by-step explanation:
....bbc
Answer: 68*
Step-by-step explanation: In pic
we have
<u>Pieces of mail delivered in December by the US postal service</u>

<u>Pieces of mail delivered in January by the US postal service</u>

To find the total mail delivered for these two months, sum the two quantities
so

therefore
the correct solution is 
the error is in this part

To move decimal over one place 10 to the power of 10 should be 10 to the power of 11
Answer:
480 is the correct answer
Step-by-step explanation:
All you have to do is multiply all together.
May I have brainliest?