If Francisco wanted to double his money in 12 years, what interest rate would his account have to earn?
Work:

Which of the following graphs could represent a cubic function?

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?

What is the quotient of 3x^4+22x^3+37x^2-7x+10