Answer:
"Grateful" instead of "Greatful"
Explanation:
Greatful is an incorrect spelling of grateful. People who use this word think it means to feel thankful for something, but are mixing it up with the spelling of great. Grateful is an adjective that is synonymous with thankful and appreciative.
The answer is D. hope that helps.
Answer:
algebraic expressions use variables, in problems you can pick one thing and call it X and another thing and call it Y. whatever those two things you picked can equal some unknown thing.
C, i believe cuz ethos is all about boosting your credibility