a) You and a friend go down to The Gelato Fiasco and order two items: one costs $4.75 and the other $4.25. What would be a 18% tip for the combined total? minus: 0
b) 20% tip is how much more than a 15% tip? Hint: Calculate each tip, then calculate the % difference
[(Final-Initial)/Initial %]. minus: 0
Question B is the one I'm finding difficulty.