A library receives 413 boxes of books and 125 boxes of magazines. There are 18 books in each box of books. How many total books did the library receive? ? x 18 = ?​

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o

What is the area of the shaded sector?