Mary wants to build a new fence to keep her sheep from running away. She is going to fence off a square area with a perimeter of 252 feet. How long will each side of the fence be? HELP

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.

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

Me d is also an option but i couldn't get it in the picture