Final answer:
The total amount that the company needs to pay the 45 people in upper management is $1.035 × 10^7.
Step-by-step explanation:
To calculate the total amount that the company needs to pay the 45 people in upper management, we can multiply the annual salary of $230,000 by the number of people. So the total amount would be $10,350,000. In scientific notation, this can be written as $1.035 × 107. Therefore, the correct answer is option A. $1.035 × 107.