Consider the polynomial 5x^2+8x-9. what is the degree of the polynomial? a.) constant b.) 1st, linear c.)2nd, quadratic d.) 3rd, cubic

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?