Plases help

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?