Write the Word or Phrase That Best Completes Each Statement $\$ 14$

Short Answer

Write the word or phrase that best completes each statement or answers thequestion.
-A simplified economy has only two industries, the electric company and the gas company. Each dollar's worth of the electric company's output requires 0.20 of its own output and 0.4 of the gas company's output. Each dollar's worth of the gas company's output requires 0.50 of its own output and 0.7 of the electric company's output. What should the production of electricity and gas be (in dollars) if there is a $\$ 14$ million demand for electricity and a $\$ 20$ million demand for gas?