Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 
and the gorge is 560 ft deep, during what interval can the flare be seen?(h = -16t2 + vot + ho.)
A. 5 < t < 7
B. 0 < t < 5
C. 10 < t < 12
D. 15 < t < 17
Answer: A
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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
- 2 ? x ? 2, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?
A. 3 B. 8 C. 7 D. 2
Solve the problem with estimation, but do not use a calculator. Use rounding to make the resulting calculations simple.If a person earns $19,800 per year, estimate that person's hourly salary.
A. $50 B. $10 C. $40 D. $100
Provide the appropriate response.Find the least number divisible by each natural number less than or equal to 10.
A. 2520 B. 30,240 C. 3,628,800 D. 100
Provide an appropriate response.Explain the difference between evaluating an expression and solving an equation.
What will be an ideal response?