A number, n, is multiplied by -0.7 the product is -1/2 .What is the value of n? А) 5/7

B)2

C)7/20

D)1 2/5

I need help fast :))

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)