Simplify the expression. Write the result using positive exponents only. 
-2
A. 
B. 
C. 
D. 
Answer: D
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Use a calculator to complete the table and using the table make a conjecture about the value of 25 / n as n approaches 0. n10.50.010.0010.00000125 / n
A. ?
| n | 1 | 0.5 | 0.01 | 0.001 | 0.000001 |
| 25 / n | ?50 | ?25 | ?25,000 | ?2500 | ?25000000 |
B. ?
| n | 1 | 0.5 | 0.01 | 0.001 | 0.000001 |
| 25 / n | 25 | 50 | 2500 | 25,000 | 25000000 |
C. ?
| n | 1 | 0.5 | 0.01 | 0.001 | 0.000001 |
| 25 / n | ?25 | ?2500 | ?50 | ?25000000 | ?25,000 |
D. ?
| n | 1 | 0.5 | 0.01 | 0.001 | 0.000001 |
| ?25 / n | ?50 | ?25 | ?2500 | ?25,000 | ?25000000 |
E. ?
| n | 1 | 0.5 | 0.01 | 0.001 | 0.000001 |
| ?25 / n | ?25 | ?2500 | ?50 | ?25,000 | ?25000000 |
Solve the problem.In how many ways can 7 people be seated in a row that has 2 vacant seats?
A. 362,880 B. 181,440 C. 36 D. 5040
Solve the problem.The approximate monthly average temperatures in degrees Fahrenheit in a certain city can be approximated by the function f(x) = -0.005x6 + 0.31x4 - 6.14x2 + 83with domain {x|-6 ? x ? 6}. Here x represents the month with 
corresponding to July. What other month has the same average temperature as March?
A. September B. October C. November D. December
First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Ray's gross pay is $250.50 per week. $51.28 is withheld for federal income tax, $31.22 for FICA tax, and $13.90 for other deductions. Find his net pay.
A. Estimate: $230; exact: $164.10 B. Estimate: $210; exact: $181.90 C. Estimate: $210; exact: $154.10 D. Estimate: $220; exact: $168.00