Acar rental agency charges 29$ per day to rent a car. and 13.95 per day for a global positioning system (gps) . customers are charged for their full tank of gas at 3.80 per gallon. a car has a 12 gallon gas tank and a gps. write a rule for the total bill b as a function of the number of days d the car is rented. what is the bill for a 9 day rental?

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)