For men born in a certain year, the predicted years of receiving Social Security benefits is 15.6 for the bottom decile of income earners versus 23.9 years for the top decile.
(a) What was the total difference between the top decile and bottom decile?
(b) What was the percent difference between the top decile and bottom decile?
(c) Now flip the order and complete the following sentence using percent difference: The bottom decile of income earners can expect to receive_ less years of Social Security benefits than the top decile.

(a) The top decile of income earners can expect to receive more years of Social Security benefits than the bottom decile.
(Type an integer or decimal rounded to the nearest tenth as needed.)
Decide whether the following statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain your reasoning. My older child weighs 25% more than my younger child. Choose the correct answer below.
A. The statement makes sense because if the older child weighs 25% more than the younger child, then his weight is 0.75 times the younger child's weight, which is possible.
B. The statement does not make sense because if the older child weighs 25% more than the younger child, then his weight is -1.25 times the younger child's weight. This cannot be true because the weight is never negative.
C. The statement makes sense because if the older child weighs 25% more than the younger child, then his weight is 1.25 times the younger child's weight, which is possible.
D. The statement does not make sense because if the older child weighs 25% more than the younger child, then his weight is -0.75 times the younger child's weight. This cannot be true because the weight is never negative.