the mass of the eiffel tower is about 9.16 ' 10^6 kilograms, the mass of the golden gate is 8.05 ' 10^8 kilograms. how many more kilograms is the mass of the golden gates than the eiffel tower

Find the solution of this system of equation -7x+y=-20 9x-3y=36

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?