Devon's wall has an area of 42 square feet she has a printing that is 10 feet by 3 feet can she have the painting on the wall justify your arguments

What are the excluded values? m+5/mn+3m

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.

I’m really confused and need to learn this