Which features are found in both emails and business letters? inside and outside addresses
formal salutations and closings
all capitalized letters in the body
subject lines specific to the topic

inside and outside addresses

formal salutations and closings

subject lines specific to the topic

idk

explanation:

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.