George walked around the entire perimeter of his rectangular garden. the length of his garden was 12 yards and the width was 8 yards.
how far did george walk?

a. 20 yards

b. 40 yards

c. 64 yards

d. 144 yards

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Which of the following can be used to explain a statement in a geometric proof?