9.82-9.71=.11
.11x100 divided by 9.82 = 1.12%
The tenth place is the first number to the right of a decimal. To determine if you're rounding or not, check the hundred's place, 2 numbers to the right of a decimal, for 5 or higher. If it's .45, round to .5, if it's .44, round to .4
Your answer is 524.5, which is B.)
20:36 simplifies to 10:18 then to 5:6
45.136 is the answer I got