PLSS HELP!! The diameter of the sun is about 1,391,000 kilometers, and the diameter of Venus is about 12,100 kilometers. About how many times larger is the diameter of the sun than the diameter of Venus?

A.
1.15 × 10^2
B.
1.4 × 10^7
C.
1.4 × 10^6
D.
1.15 × 10^3

The ages of personnel in the accounting department of a large company are normally distributed with a standard deviation of 7 years. there is a 0.02275 probability that the age of any randomly chosen person in the department is less than 22 and 0.15866 probabilty that the age of any randomly chosen person is greater than 43. what is the mean of this distribution?