Tamika works in a shoe store and is paid a 12% commission on her sales. In January her sales total
was $3740. To the nearest dollar, how much did
Tamika earn in commission for January?

Explain correctly. No nonsense, please.

Thank you

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)