Richie is 3.5 inches shorter than Will, who is 2 inches taller than Derek, who is 56 inches tall. How tall is Richie? How much taller than Richie is Derek?

So, we know that Richie is 3.5 inches shorter than will. you need to focus on how tall Derek is, in other to find how tall Richie is. so I think the problem is 58 (which I got from adding 56+2) - 3.5 = 54.5: therefore, Richie is 54.5 tall. for the second question, you will do 58-54.5=3.5, 3.5 taller than Richie.