Answer:
7.8 x [tex]10^7[/tex]
Step-by-step explanation:
As a number, 78 million would be 78,000,000.
- The decimal has to move 7 spaces from the last zero to get between 7 and 8.
- The number before the 10 exponent has to be between 1 and 10.
78,000,000 = [tex]7.8*10^7[/tex] or [tex]7.8e7[/tex]
