Answer:
7.8^7*10
Explanation:
So if you write the number out it would be 78,000,000.
Count how many zeros there are. In this case there are 6.
In order to do this right, the number you use for the answer must be in between 0 and ten. So you would use 7.8
If you move the decimal point back 7, you get your number.
Your equation should look like this:
7.8^7*10