Follow these 3 steps to convert mixed numbers to improper fractions:
Multiply the whole number by the denominator
Add the answer from Step 1 to the numerator
Write answer from Step 2 over the denominator
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When the exponent is a negative value, you would move the decimal point that many places to the left.
9 x 10^-4 = 0.0009
To round a number to the nearest tenth, we must look at the hundredths place because it is the next number to the right.
In this case, 1 is in the tenths place and 6 is in the hundredths place.
If the number to the right is 0-4, then the number being rounded is rounded down.
If the number to the right is 5-9, the the number being rounded is rounded up.
Since 6 is one of the numbers in the 5-9 list, the number being rounded (1) will be rounded up.
Therefore, 1 will be round to the next whole number which is 2.
This means the number will be 314.2