Victor borrowed money at 5.25 percent simple annual interest. at the end of the year, the interest on the loan is $255.94. what was the amount of the loan?

Alice is paying her bill at a restaurant. the tax on the cost of her meal is 5%. she decides to leave a tip of 20% of the cost of the meal plus the tax. write an expression for her total bill if the cost of her meal is m dollars. write your answer in simplified form.