Can someone tell me how to do these problems, I keep getting stuck on them: "find the value of x"

Sasha invests $1000 that earns 8% interest compounded annually. write a function that describes the value, v, of the investment after t years.

What were mkh company's cash flows from (for) operating activities in 20x1? $(180,300) $233,100 $268,200 $279,400?

Which of the following represents the range of the graph of f(x) below