Use division properties of one and zero to quickly determine the quotient, or state that the expression is undefined.79 ÷ 79
A. 1
B. Undefined
C. 0
D. 79
Answer: A
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State the domain of the rational function.f(x) = 
A. (-?, -7) ? (-7, 0) ? (0, ?) B. (-?, 7) ? (7, ?) C. (-?, 1) ? (1, ?) D. (-?, -7) ? (-7, ?)
Translate to an algebraic expression.Seventy-nine less than two times a number
A. 2 - 79x B. 79 - 2x C. 2x - 79 D. 79x - 2
Solve.A company has 63,000 employees. Of these, 
drive alone to work, 
car pool, 
use public transportation, 
cycle, and the remainder use other methods of transportation. How many employees use each method of transportation?
A. Drive alone: 2,100; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
B. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
C. Drive alone: 21,100; car pool: 10,500; public transportation: 8,900; cycle: 7,000; other: 1000
D. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
Solve the problem.The marriage rate in a certain country in 1990 was 0.96%, and there were about 420,000 marriages that year. Use the model M(t) = M0(1 + r)t, with a constant marriage rate and t = 0 corresponding to 1990 to estimate the number of marriages in 1999.
A. 457,713 B. 290,864 C. 0.00290864 D. 958,394