Sam bought 2 1/5 pounds of carrots for 6.60$. what is the unit rate in cost per pound

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

If i have 20$ and i gave 5$ away how much i got

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)