Please help with this math equation

Come up with a new linear function that has a slope that falls in the range 10 m − < < . choose two different initial values. for this new linear function, what happens to the function’s values after many iterations? are the function’s values getting close to a particular number in each case?

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

What is the gcf of 20c^3-5c^4+30c^6