Six people are in line to enter a museum. how many ways can the people be arranged in line?

If angle 2=3x +1 and angle 3=2x +4what is angle 2

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

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)