Janna spends 1.25 hours of the 8-hour word day answering e-mail messages. what percentage of the work day is this time?

Whats the name of the vertical axis

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

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)