Answer: Computer aided engineering(CAE) systems.
Explanation:
Computer aided engineering involves making use of computer softwares that aids production. The computer aided engineering software is used to design how product could look like, simulate the product on a computer system to determine the product's possible performance and to ensure the desired standard is met, before the design can then be used to carry out production. Computer aided engineering is commonly applied in automobile production and large buildings construction.
Answer: Equilibrium price is $3 and equilibrium quantity is 40 units.
Explanation:
Demand equation is given by,
Therefore the demand equation is given by, 
Supply equation is given by
Therefore, the supply equation is given by,
Equilibrium is given by
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