Which table represents a linear function?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?