Question

20. According to the Wall Street Journal, 14,200,000 copies of Walt Disney's Fantasia have been sold to date. Write that number in scientific notation

Answer 1

Hi there, the answer is:
$14200000 = 1.42 \times {10}^{7}$

1.42 is because the first number in scientific notatation has to be between 0 and 10. To get our answer we must multiply by 10^7.