(3-6)-p
It says your subtracting 6 from 3 which is (3-6) and it says "then" that's why we put parentheses and then put "-p"

The answer is B. a_n = 7n+10
Answer:
2 with the sqaure root of 12 is = 6.9 simp = 6.9
4 with the sqaure root of 10 is = 12.6 simp= 12.6
sum = 19.5
I hoped this helped! :)