The speed limit sign on the expressway says that the speed limit is 70mph. Write an inequality that represents all speeds you can legally drive on the expressway. A. x ≤ 70
B. x ≥ 70
C. x > 70
D. x < 70

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