Solve for x and then find the measure of

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

What is 10+10+20 about the origin the square root of a triangle.

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5