A $100$ ounce jug of very sour lemonade initially consists of $60\%$ water and $40\%$ lemon juice. $60\%$ of the lemonade is poured out, and then $8$ ounces of lemon juice is added to the jug. What percentage of the mixture is now lemon juice?

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?