Jack and walter work in a store's gift-wrapping department. jack can wrap 28 boxes in 2 hours, while walter takes 3 hours to wrap 36 boxes of the same size. one day they work together for t hours to gift wrap 65 boxes. which equation models this situation?

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.