4. Experienced students may serve as mentors if they are at least age 21 and have at least three years of post-secondary education. Populate the Mentor column as follows: a. Enter a formula using nested functions to determine if the first student is eligible to serve as a mentor. Display Yes if both of the criteria are met. Display No if a student meets none or only one of the criteria. b. Fill the formula to the rest of the column, if necessary.

Convert the quartstogallons class to an interactive application. instead of assigning a value to the number of quarts, accept the value from the user as input.

Write a program that prints the day number of the year, given the date in the form month-day-year. for example, if the input is 1-1-2006, the day number is 1; if the input is 12-25-2006, the day number is 359. the program should check for a leap year. a year is a leap year if it is divisible by 4, but not divisible by 100. for example, 1992 and 2008 are divisible by 4, but not by 100. a year that is divisible by 100 is a leap year if it is also divisible by 400. for example, 1600 and 2000 are divisible by 400. however, 1800 is not a leap year because 1800 is not divisible by 400.

What are some settings you can control when formatting columns?