One number is eight more than twice another. if their sum is decreased by nine, the result is fourteen. find the numbers

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units