Please help!! it’s due today

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.

10x − 5y + 14 = 0 whats the answer pls

Interpret the following expression (5y^2-7)^3/(2y)^2