Suppose an economy has two industries, agriculture and minerals, and the economy has the technology matrix

(a) If surpluses of 100 agriculture units and 140 minerals units are desired, find the gross production of each industry.

(b) How many additional units must each industry produce to have 4 more units of agricultural surplus?

(c) How many additional units must each industry produce for 1 more unit of mineral surplus?

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Ag M 0.4 0.2 Ag A = L0.1 0.3