Suppose the average American's weight increases 1.5 % each year after they turn 40. Uncle Sam just turned 40 and weighs 192 lbs. a. Create an explicit (general) equation to predict Uncle Sam's weight n years after 40. P lbs b. Use your equation to predict Uncle Sam's weight at age 80, assuming the same growth applies. Round your answer to at least 3 decimal places, if necessary. lbs Show or explain your calculations below: