does anyone know the answers to lesson 2 semester A exam, Algebra 2 A. unit 8. i really need your help!

If i have one apple and give you the apple, how many apples do i have?

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

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)