Help me out plz it’s 14

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.

Me asap! what is the slope of this line? enter your answer in the box.

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points