Determine whether the polynomial is a perfect square trinomial, a difference of squares, or neither.x2 - 4
A. Perfect square trinomial
B. Neither
C. Difference of squares
Answer: C
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Graph the integrand and use geometry to evaluate the integral.
A. 48 B. 72 C. 12 D. 36
Find the greatest common factor of the numbers.960 and 27,000
A. 60 B. 960 C. 360 D. 120
Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Using the decreasing-time algorithm to schedule this project with two processors, the project finishing time is
A. 18 hours. B. 17 hours. C. 20 hours. D. 19 hours. E. none of these
Find the tax. Use $3700 for each personal exemption; a standard deduction of $5800 for single people, $11,600 for married people filing jointly, $5800 for married people filing separately, and $8500 for head of a household; and the tax rate schedule. 
Lilly Donaldson had wages of $27,301, other income of $2901, dividends of $240, interest of $335, and a regular IRA contribution of $778 last year. She had deductions of $1291 for state income tax, $1460 for property tax, $1480 in mortgage interest, and $733 in contributions. Donaldson claims three exemptions and files as head of household.
A. $777.25 B. $952.35 C. $1482.75 D. $-262.65