1. (2.56 x 10^6) x (3.56 x 10^2) =
   
   

A9.1136 x 10^12

B91.136 x 10^8

C9.1136 x 10^8

D91.136 x 10^12

1. In a recent year, the population of California was about 2.52 x 10^7 people. Its land area is about 4.05 x 10^5 km2. What was the average number of people per square kilometer?
   
   

A0.62 x 10^5

A6.2 x 10^1

A0.62 x 10^14

A6.2 x 10^9