Answer
a. 397.02; b. No, because it isn't a whole number; c. 397; d. 25.05%
Work Step by Step
a. $1018*0.39$
$357.02$
b. It is impossible for their to be a decimal of a human being. People have to be represented by whole numbers.
c. 357.02 rounds to 357.
d. $255/1018$
$0.25049...$
$25.05$%