Convert the units using unit fractions.4500 lb = 
tons
A. 3
B. 4
C. 1
D. 2
Answer: D
Mathematics
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Find the sum, if it exists.
A. 
B. 
C. - 
D. Does not exist
Mathematics
Solve.
Which box has the highest maximum value?
A. B B. C C. A D. D
Mathematics
Solve the problem.A rectangular piece of cardboard measuring 25 inches by 47 inches is to be made into a box with an open top by cutting equal size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. For what value of x will the volume be a maximum? If necessary, round to 2 decimal places.
A. 22.55 B. 37.58 C. 5.21 D. 18.79
Mathematics
Evaluate the exponential expression.-34
A. -243 B. -81 C. 243 D. 81
Mathematics