You bought two tickets to the movies at a price of $7 and six tickets at a price of $5. How much did you pay for the tickets? (Order Of Operations)

Answer this question only if you know the 30 points and

What is the slope of the equation y =

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)