14.5 cm A fruit drink is sold in a box that contains 10 drink
pouches. The dimensions of the box are shown.
a) Determine the surface area of the
cardboard used for the box.
b) Each drink pouch uses about 340 cm
9.0 cm
of material. How much is used for the
10 pouches?
c) Each drink pouch contains 200 mL. What is the total
amount of drink in the package?
28.5 cm

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.