False.
If the price of a product goes up by 10% and the quantity demanded goes up by 20% the product is a GIFFEN GOOD.
An inferior good is a good that decreases in demand if income increases. These are the goods that people opt not to buy when their purchasing power increases.
Answer: Decrease, decrease
Explanation: Substitute goods are those goods that are used in place of each other. When the price of a substitute good falls, it becomes more attractive to the consumers. Here, wood planks and wood beams are substitutes to each other. So, when price of wood plank falls, demand for wood beams will decrease, shifting the demand curve to the left. As a result, of this the equilibrium price of wood beams and the quantity of wood beams will also decrease.
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The Free Application for Federal Student Aid (FAFSA<span>) is used to calculate the Expected Family Contribution (EFC), a somewhat harsh measure of the family's ability to pay for college. The EFC is the sum of a student contribution and a parent contribution.</span>