What are these 2 answers can you answer it like 1 x= y= and then do 2 x= y= the top is 1 and the bottom is 2

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)

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

Fiona has to plot a histogram of the given data