You just do what it says, combine like terms so if there is more than one number squared just add up the numbers.
You also what to put them in order for the biggest number to the smallest so if there’s squared cubed and Normal number you want to put it in the exact order I gave you.
So first let’s combine.
-20a^2 + 40a^2 = 20a^2
5b + 35b + 2b = 42b
-15c
Therefore this is the answer.
20a^2 + 42b - 15c
Answer:
creates a contrast with Tom Sawyer's feeling about his chore
A river. People describe a river as "running water". The mouth is the opening or beginning, and the riverbed is the shore.
Nice riddle.