Question 164610
you must convert 4% to a decimal by dividing by 100 or moving the decimal two places to the left.  Therefore 4% becomes .04
Next multiply 80 pounds by .04 and you get 3.2 pounds
{{{80*.04=3.2}}}
3.2 pounds is the amount of weight being increased so you need to add it to the original 80 pounds
{{{80 pounds+3.2pounds=83.2pounds}}}