Which transformation represents a reflection over the x-axis? O (X, Y) - (-x, y)
O(x, y) → (X, -y)
O(x, y) (y, x)
(x, y) - (-y, x)

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years