Please helppp me :( it’s c^4/c^3

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square