PLESE HELPPP im struggling please.

What is the value of the expression below? 148+(-6)| + |– 35= 7|

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

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)