Take the co-ordinates of your triangle and add three to the Y co-ordinates and keep the X co-ordinates the same. Then, graph. The shape should have slid upwards three points.
I think the total area of both is 3,864
4x-7= 4x-8
Move +4x to the left side. Sign changes from +4x to -4x
4x-4x-7= 4x-4x-8
-7= 0-8
-7= -8
Answer : no solution
She can round 4 7/8 as 5 yards of material. and since she's making three, multiply 5 yards by 3 dresses. that equals 15 yards of material needed.
2 Would be the answer.
Hope that helps!!