Dinner at your grandfather's favorite restaurant now costs $25.25 and has been increasing steadily at 4% per year. How much did it cost 35 years ago when he was courting your grandmother?
this will be a little complex number... assume 35 years ago, it cost x dollars for now: x×[tex]1.04^{35} [/tex]=25.25 solve it! :) maybe too difficult without a calculator