Write an equation to represent the relationship between Melanie's distance d and the time t cycled

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Given abc find the values of x and y. in your final answer, include all of your calculations.