In ΔABC, calculate ∠A to the nearest degree. Given that AB = 18 cm

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?

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)