Which of the following units is incommensurable with kilograms? A. pounds B. ounces C. tons D. gallons

Which is the value of this expression when p=(-2) and q=(-1)

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.

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin