Simplify the expression.(1 + cot ?)(1 - cot ?) - csc2 ?
A. 2 cot2 ?
B. 0
C. -2 cot2 ?
D. 2
Answer: C
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Determine whether the spending pattern described is at, above, or below the national average. Assume that any salaries or wages are after tax. 
A couple in their forties with a combined household income of $56,000 per year spends $400 per month on health care.
A. above average B. at average C. below average
Solve the problem. Refer to the table if necessary.
Kelsey earned $58,750 in wages. Conner earned $58,750, all in dividends and long-term capital gains. Calculate the overall tax rate for each, including both FICA and income taxes. Assume they are both single and take the standard deduction. Note that long-term capital gains and dividends are taxed at 0% for income in the 10% and 15% tax brackets and at 15% for income in all higher tax brackets except the highest 39.6% bracket. If necessary, round values to the nearest dollar.
A. Kelsey: 0.0% Conner: 4.4% B. Kelsey: 19.7% Conner: 11.6% C. Kelsey: 13.3% Conner: 2.7% D. Kelsey: 21.0% Conner: 2.7%
Solve the equation on the interval 0 ? ? < 2?. sin ? + 
cos ? = -1
A. 
, 
B. 
, 
C. 0, 
D. 
, 
What did Jean Piaget call the process by which people understand an experience in terms of their current stage of cognitive development?
A. cognition B. accommodation C. schemes D. assimilation