Develop an estimated regression equation that can be used to predict the fuel efficiency for highway driving, given the engine's displacement. let x represent the engine's displacement. if required, round your answers to three decimal places. for subtractive or negative numbers use a minus sign even if there is a sign before the blank. (example: -300)

(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?