20 points
if triangle abc = triangle fgh, then which of the following statements is not necessarily true?

a. angle a = angle f
b. line segment ac = line segment hg
c. line segment ab = line segment fg
d. angle b = angle g

6x - 8 = 16 solve the following equation. then place the correct number in the box provided.

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)

What percent of 18 is 24? and plz explain thx.