Pleaze help me on the first 2

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.

Need solving this second acceleration problem.