7. Consider a city with three sectors. The bid-rent curve for each sector is described below. 1) The office sector's bid-rent at the city center is $8 (per square feet); it decreases by $4 for every mile away from the city center. 2) The manufacturing sector's bid-rent at the city center is $5; it decreases by $1 for every mile away from the city center. 3) The residential housing sector's bid-rent at the city center is $2; it decreases by $0.25 for every mile away from the city center. Assume that farmers are willing to pay a maximum rent of $0.5 (per square feet) for land in any location: (a) Carefully draw the bid-rent curves for each sector in a single diagram. (10 pts) (b) Explain how land is used in this city.(10 pts)