Ahummingbird may flap its wings from 64,800 to 280,800 times in an hour.
find the difference between the larger and smaller number. then round, the answer to the nearest ten thousands place

me im stuck

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