There is a Math website that has a lot of Calculus story problems. He shows you how to solve problems.
patrickjmt.com
also on Youtube;
Patrickjmt channel. The Yourmathgal channel is also good,
both have over 800
videos. Have gone to
both since 2011.
Answer: 28.26 square cm
Step-by-step explanation:

That will be easy. It could be 12/56+3/56 or, 7/56+8/56 or, 10/56+5/56.
98.4252<span> inches is the exact so about 98 inches</span>