There are nine hundred ninety students at a school. If each classroom holds thirty students, how many classrooms are needed at the school

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)

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red