Can u pls tell me the answers to the questions

Which expression is equivalent to the expression shown?

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

The liabilities of cullumber are $99,000. owner’s capital is $143,000; drawings are $96,000; revenues, $467,000; and expenses, $301,000. what is the amount of cullumber company’s total assists?