446. 7.77%

First, to convert to a decimal, divide 777 by 10,000. This is equivalent to moving the decimal point 4 places to the left.

Now, change this decimal to a percent by moving the decimal point two places to the right and attaching a percent sign (%).

447. 100.1%

First, change to a mixed number.

To convert to a decimal, divide 1,001 by 1,000. This is equivalent to moving the decimal point 3 places to the left.

Now, change this decimal to a percent by moving the decimal point two places to the right and attaching a percent sign (%).

448. 10

50% equals , so divide 20 by ...