The function f has the property that f(x)=f(x+1) for all numbers x. if f(4)=17, what is the value of f(8)?

Icould really use some with this question.

What is the remainder when 3x^2-x-10 is divided by x-1 -6,-7,-8, or -9

Alistair has 5 half-pounds chocalate bars. it takes 1 1/2 pounds of chocalate, broken into chunks, to make a batch of cookies. how many batches can alistair mke with chocalate he has on his hand?