A corporation earned a profit of $2.5 × 10^4 for 1 × 10^3 days in a row. What was the corporation’s total profit during this time period? Write the answer in scientific notation.
A: 2.5 x 10^-7
B: 2.5 x 10^7
C: 2.5 x 10^6
D: 2.5 x 10^5
To find the total profit during this time period, we need to multiply the profit per day by the number of days.
Profit per day: $2.5 × 10^4
Number of days: 1 × 10^3
To multiply the values in scientific notation, we multiply the numbers and add the exponents:
($2.5) × (1) × 10^(4+3) = $2.5 × 10^7
Therefore, the corporation's total profit during this time period is 2.5 x 10^7. The answer is B.