A= 30ft, because you only have to multiply LxW= A that is equal to 2x15=30ft
Substitute
4x+2=x-4
Then solve
3x=-6
x=-2
Substitute answer into an equation to find y
y=-2-4
y=-6
So you solution is:
(-2,-6)
I cannot see it all is their something you could do to help me help you?
722 bricks and 8 workers.