Suppose that consumers' incomes increased, such that more video games were demanded at each price level. After the increase in demand, the new equilibrium price is , where both supply and demand equal .

After the increase in demand, the new equilibrium price is $160, where both supply and demand equal 300.

Explanation:

When the income level of customers increases, the demand curve shifts to the right, increasing the quantity demanded at every price level.

If the quantity demanded for a good increases as its customers' income increases, it is called a normal good.

In this case, the previous equilibrium quantity was 200 units and the equilibrium price was $50. Since the demand curve shifted to the right, both the quantity demanded increased from 200 units to 300, and the equilibrium price increased from $50 to $160.

the investment was $14,174.196

explanation:

a lump sum means that the father of the example made one deposit and leave it be.

we need to know the value of a capital that generated at 4.05% per year during 28 years the sum of $48,613.24

now clearing the formula to solve for capital we got:

and we reach the answer investment = $14,174.20