Mason currently pays $420 per month in rent. the contract on his apartment states that his rent will increase by 6% next year. by how much will masons rent increase next year? what will be masons new rent, per month, next year?

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?