The area of a rectangle is 380 square units. Its length measures 20 units. Find the length of its diagonal. Round to the nearest tenth of a unit.

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.

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?