Joe borrowed $4,000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in 8 years? In 8 years, Joe pays $
in interest.

The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function

Which expression is equivalent to 3^3 + 2^2?

We just started the introduction into circles and i have no idea how to do this.