Please help me! The format of the questions:
Q1 Q5
Q2 Q6
Q3 Q7
Q4 Q8
Q9
Q10
Q11

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

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)

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction