1. Debbie saws a plank of wood into five equal pieces. What percentage is each piece?
PLEASE SOMEONE HELP ME I HAVE JUST ONE MORE QUESTION LIKE THIS

What properties allow transformation to be used as a problem solving tool

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)

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12