In what form is an equation that relates two proportional quantities x and y? Explain your thinking.

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Sum is 17 and their difference is 3