26. This week 6 different students paid $2.00 each in fines to the school librarian. The librarian also received a $60.00 donation from a local business. She spent $37.50 to buy books and supplies. Write an expression that shows the amount of money the librarian has at the end of the week. DO NOT SOLVE. YOU SHOULD NOT HAVE AN EQUAL SIGN.

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?