Can someone check my answers. my answers are marked with *** a family is building a rectangular fountain in the backyard. the yard is also rectangular and measures 7x by 9x. the fountain is going to measure 3x by 4x. once the fountain is built, what will be the area of the remaining yard? 63x^2 75x^2*** 12x^2 51x^2 a family is building a new house on a rectangular lot of land. the lot measures 7x by 11x and the house will be 2x by 3x. how much land will be left for there yard after the house is built? 77x^2 83x^2 40x^2 71x^2***