This three-dimensional figure is a triangular pyramid where the base and lateral faces are congruent equilateral triangles and the height of each triangular face is 17.32 inches. The surface area of the figure is square inches.

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