WHAT IIS 2÷ (1 6/7) THE 1 IS PART OF THE 6/7 ITS A MIXED FRACTION PLEASE HELP IDK HOW TO DIVIDE THEM!!

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.

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

If two points are given, then exactly one line can be drawn through those two points. which geometry term does the statement represent