Help asap!will mark brainliest if there's two answers thank you so much if you help

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.

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?