Someone please just help me with this

What is the value of x in the equation 3x4y65, when y=4?

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)

50 points 1- 24=-v/3 2- -20=-7+w 3- )=32