(50 points for best and correct answer ASAP no steps needed) A family is building a rectangular fountain in the backyard. The yard is also rectangular and
measures 6x by 7x. The fountain is going to measure 2x by 4x. Once the fountain is built, what
will be the area of the remaining yard?
A. 34x^2
B. 8x^2
C. 50x^2
D. 42x^2