An urn contains 20 marbles identical in every respect except color. There are 7 red marbles, 8 green marbles and 5 blue marbles. You draw two marbles from the urn but replace the first ball before drawing the second. Find the probability that the first ball is red and the second is green. Group of answer choices

64/95

14/95

7/50

4/25

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.