In two weeks a plant grew 4/12 of a foot. the firat week it 1/12 of a foot how much did the plant grow in the second week show your work with a model or expression and could somrone me with the model abd expression

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²