Cathleen wants to write a fraction that is equivalent to 4/5 which step can cathleen follow to write and equivalent fraction? a. add 4/5 to 4/5 b. add 3/3 to 4/5 c. multiply 4/5 by 4/5 d. multiply 4/5 by 3/3

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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)

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.