Use distributive property and partial products to find 7 x 12

Plz i want answer and i would appreciate it is is a b c or d

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

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)