The us postal service delivered 7.14 x 1010 pieces of mail in the month of december and 3.21 x 1010 in the month of january. what is the total mail delivered for these two months? a) 1.035 x 109 b) 1.035 x 1010 c) 1.035 x 10-10 d) 1.035 x 1011

The correct option is:  D)

Explanation

Number of mails delivered in the month of December

and number of mails delivered in the month of January

For finding the total number of mails delivered for these two months, we need to add and

So, the total mail delivered for these two months is