Can someone help with 6 and 7

Answer:
its a nice question
Step-by-step explanation:
(its a nice question means) the question is very good u should ask it more often to tease my brain cells the question is very pretty i appriciate it very classy and circuly too numbery hope i helped ༼ つ ◕_◕ ༽つ¯\_(ツ)_/¯