8. A bucket can hold a combination of 5 pounds of dry sand and 2 pounds of water. If Marquille needs 42 buckets of this sandy mixture for his sand castle, how many pounds of
dry sand does he need?

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 letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?