Simplify the radical.
A. x5
B. x10
C. x10
D. x5
Answer: D
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Find the domain and range of the function.F(t) = 
A. D: [0,?), R: [0,?) B. D: (0,?), R: (0,?) C. D: (-?,?), R: (-?,?) D. D: (-?,0), R: (-?,0)
Solve or simplify, whichever is appropriate.
- 1 + 
A. -4x - 6
B. 
C. {2}
D. 
Rationalize the denominator. 
A. 
B. 
C. 
D. 
Solve the problem. First use front end rounding. Then find the exact answer.There are 27,878,400 square feet in one square mile. How many square feet are there in 68 square miles?
A. Estimate: 1,960,000,000 square feet; exact: 1,895,704,000 square feet B. Estimate: 1,960,000,000 square feet; exact: 1,895,731,200 square feet C. Estimate: 2,100,000,000 square feet; exact: 1,895,731,200 square feet D. Estimate: 2,100,000,000 square feet; exact: 1,895,704,000 square feet