Me someone i am being timed

virgina has 1/2 of a cake leftover. she wants to serve each of her guests 1/10 of a whole cake. how many guests can she serve.

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)

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Find the axis of symmerty for x y=x squared -4x-8