III 10
On a 50-question test, Cheryl answered 44 questions correctly. What percent of the questions did she answer
correctly?

44%
81%
88%
94%

Regular price 75$ discount 25%sale price?

What is the number 321,000,000 in scientific notation? also what is the number? ?

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)