What is the slope of the function?

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.

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

State if the two triangles are congruent. if they are, state how you know?