Solve the problem.A long-distance runner runs 2 miles south and then 4 miles east. How far is the runner from the starting point? Round to nearest tenth. 
A. 1.1 mi
B. 1.5 mi
C. 4.5 mi
D. 2.5 mi
Answer: C
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Solve the problem.A construction crane lifts a 100-lb bucket originally containing 130 lb of sand at a constant rate. The sand leaks out at a constant rate so that there is only 65 lb of sand left when the crane reaches a height of 50 feet. How much work is done by the crane?
A. 4875 ft ? lb B. 11,500 ft ? lb C. 2250 ft ? lb D. 9875 ft ? lb
Simplify the radical expression. Assume all variables represent positive real numbers.
A. 10,000 B. 10 C. -10 D. not a real number
Solve.In a pole vaulting competition, Jesse vaulted 3.9 meters. How many centimeters did he vault?
A. 3900 cm B. 0.39 cm C. 390 cm D. 39 cm
Solve the problem.Find the sum of all the integers from -32 to 50.
A. 747 B. 697 C. 779 D. 729