Chen paid $36 for some books after a 25% discount was applied. what was the original price of the books?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Adeposit of 5500 at 6% for 3 years equals

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)