Question

According to a recent survey, approximately 1 of Americans use their cell 5 phone instead of having a phone at home. Approximately, what percent of Americans still have a home phone?
a) 15%
b) 20%
c) 40%
d) 80%

Answer 1

fix your data and then just subtract from 100%.
But the question is poorly presented anyway ...

Answer 2

4/5 * 100