Solve the problem.A construction crane lifts a 100-lb bucket originally containing 135 lb of sand at a constant rate. The sand leaks out at a constant rate so that there is only 67.5 lb of sand left when the crane reaches a height of 60 feet. How much work is done by the crane?
A. 14,100 ft ? lb
B. 12,075 ft ? lb
C. 2625 ft ? lb
D. 6075 ft ? lb
Answer: B
Mathematics
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Find the volume of the indicated region.the region bounded by the coordinate planes and the planes 
, 
A. 
B. 
C. 9
D. 
Mathematics
Translate the phrase to an algebraic expression. Use x to represent "a number."Multiply a number by -15.
A. x ÷ (-15) or 
B. (-15) ÷ x or 
C. -15 + x
D. x ? (-15) or -15x
Mathematics
Graph.y ? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Assume that the minimum payment on a credit card is the greater of $27 or 3% of the unpaid balance.Find the minimum payment on an unpaid balance of $1456.38.
A. $27.00 B. $48.69 C. $436.91 D. $43.69
Mathematics