Aplane flies over city a and reaches city b, 115 miles away, in 15 minutes. find the speed of the plane in miles per hour assuming the plane flew at a constant speed. a. 300 mph b. 460 mph c. 600 mph d. 680 mph

Jonah runs 3/5 miles on sunday and 7/10 mile on monday. he uses the model to find that he can ran a total of 1 mile . what mistake does jonah make

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)

2.5 milligrams is equivalent to how many grams