A tank of water is losing 5 liters of water every minute. In 12 minutes, there are 90 liters remaining in the tank. How many minutes will it take for the tank to be empty? A. 18 minutes
B. 30 minutes
C. 45 minutes
D. 78 minutes

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

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account