Help please
I’ll give brainliest and thanks!!

What are the biggest challenges facing the average american citizen today? explain.

Why are slanted roofs found on many buildings within russia and finland? a. to prevent ice slides. b. to prevent the build-up of water during heavy rains. c. to prevent heat from escaping during the clod winter months. d. to prevent snow build-up.

The united states economy makes up how much of the worlds economy