Jacob is using this rule. ''start with a number, divide it by 2 and then add 3. write down the result.'' a) what is the result when jacob starts with 8? b) what number did jacob start with when the result is 5?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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)

W-16=-12 solve each one step equation plz