I need help in this question

You estimate that a kitten weighs 8 pounds the actual weight of the kitten is 6 pounds what is the percent error rounded to the nearest hundreth of a percent

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)

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585