A box of marbles contains 20 red marbles, 15 blue marbles, 13 orange marbles, and 12 white marbles. What is the probability that if a marble is selected at random, the marble will be blue? a 0.25
b 0.33
c 0.20
d 0.15

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)

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.