0.8 is a decimal number to change it to a fraction make the denominator equal 10 because we have one decimal place
we can simplify it by divide up and down by 2
To write it with a negative exponent we will reciprocal it and make the exponent -1
To write it as a product of a single-digit integer and an integer power of ten
Make the denominator 10 = 10^(-1)
Let us do the same with 0.0000006
Because we have 7 decimal places the denominator has 7 zeros
We can divide up and down by 2 to simplify it
Let us write it with a negative exponent
The number as a product of single-digit times 10 to the power is
You can do the last number in the same way