If a single person has a standard deduction of $6,300, itemized deductions of $6,650, and a personal exemption of $4,000, then the first ________ of income is federal income tax free.

When demand for a product increases,

A) suppliers change their plans. B) demanders change their plans. C) the price changes. D) all of the above occur. E) none of the above occur.

Assume Qs represents the quantity supplied at a given price and Qd represents the quantity demanded at the same given price. Which of the following market conditions produce a downward movement of the price?

a. Qs = 1,000, Qd = 750 b. Qs = 750, Qd = 750. c. Qs = 750, Qd = 1,000 d. Qs = 1,000, Qd = 1,000.