I need help plz thank you

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Which expression gives the exact value of x?

Afarm is to be built in the shape of quadrilateral abcd, as shown below. all four sides are equal. a rhombus abcd is shown with diagonal ac equal to 15.5 feet and diagonal bd equal to 13.2 feet. what is the area of the farm? pleas only pick from the 4 below 62 square feet 52.8 square feet 57.4 square feet 102.3 square feet