Please help me with these Mcqs-

14.In the market for good X, demand is Q^D = 6,000 - 0.8P and supply is Q^S = 0.4P - 300. Suppose that an increase in consumer income makes consumers willing to pay $500 more per unit of good X. Also, a technological breakthrough in production makes firms willing to sell good X for $250 less per unit. What is the new equilibrium price?

$4,800

$2,000

$1,200

$5,500

15.Consumers are particularly price-responsive when:

there are few substitute goods available for a product, and they have a short time horizon to adjust their consumption.

prices are low and they have little time to change their consumption patterns.

it is difficult to substitute across suppliers and prices are high.

a product has many substitutes and they have a long time to adjust their consumption.

17.Sarah gets utility from soda (S) and hotdogs (H); her utility function is given by:

U(S, H) = S^0.5H^0.5

Sarah's income is $12, and the prices of sodas and hotdogs are $2 and $3, respectively. What is Sarah's utility-maximizing bundle of sodas?

(Note: If your answer is S = 10.76, type only: 10.76. Two digit decimal is enough)