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This is the problem, I’m not sure what they are asking

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.

Select the sequences that are geometric.

Find the zeros of each function. f(x) = 6x^2 - 7x - 20