Solve the problem.A conical tank is resting on its apex. The height of the tank is 
, and the radius of its top is 
. The tank is full of gasoline weighing 
How much work will it take to pump the gasoline to a level 
above the cone's top? Give your answer to the nearest ft ? lb.
A. 184,726 ft ? lb
B. 36,945 ft ? lb
C. 344,821 ft ? lb
D. 73,890 ft ? lb
Answer: A
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Provide an appropriate response. A rectangle measures 12 m by 14 m. If the width is decreased by 3 m and the length is increased by 4 m, how much would the area change?
A. decrease by 18 m2 B. decrease by 6 m2 C. increase by 108 m2 D. decrease by 78 m2
Solve the inequality.4 - 2x - 5 ? -3x - 8
A. (-2, ?)
B. [-7, ?)
C. (-?, -7]
D. (-?, -2)
Determine whether the pair of fractions is equivalent.
and 
A. equivalent B. not equivalent
Use a proportion to solve the problem.The ratio of the lengths of strings that play the notes D and A is 3 to 2. If a string 54 centimeters long plays a D, what is the length of the string that plays an A?
A. 57 centimeters B. 36 centimeters C. 56 centimeters D. 81 centimeters