The additional rats will live in this building one year from now is 3.41 x 10^5.
Standard form is used in expressing large numbers in smaller numbers. In order to write a number in standard form, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10.
(6.2 x 10^3) x ( 5.5 x 10^1) = 34.10 x 10^4
= 3.41 x 10^5
To learn more about standard form, please check: https://brainly.com/question/25334755
#SPJ1