jess used 11 1/2 cups to make 3 1/2 batches of oatmeal cookies. One batch makes 24 cookies. If jess follows the same recipe, about how many cookies can she make with 16 1/2 cups of flour

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)