Solve.The population of a town was 25,100 at the beginning of 1970. If the population decreased 250 people per year, how many people lived in the town at the beginning of 1985?
A. 21,350
B. 21,600
C. 3750
D. 21,100
Answer: A
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Express as a single logarithm and, if possible, simplify.loga 1,000,000 - loga 1000
A. loga 
B. loga 1000
C. loga 999,000
D. 1000 loga 1,000,000
Give the coordinates of the points shown on the graph. 
A. C = (6, -2), D = (-3, 2) B. C = (-2, -3), D = (6, -3) C. C = (-2, 6), D = (2, -3) D. C = (-2, 6), D = (-3, 2)
Write the set as indicated.Write {17, 18, 19, 20} using set-builder notation.
A. {x?x is a natural number between 16 and 21} B. {17, 18, 19, 20} C. {x?x is a natural number less than 21} D. {x?x is a natural number between 17 and 20}
Solve the problem.A simple exercise machine can be constructed by mounting a stiff spring securely to a wall and attaching a "T" handle to the free end of the spring. The arms can be exercised simply by pulling the "T" handle towards the torso. For a particular spring, the stretch distance is related to the work exerted by the equationx = 
,
where W is the work exerted in joules and x is the stretch distance in cm. How far will you stretch the spring if you exert 680 joules of work? Round your answer to three decimal places.
A. 0.089 cm B. 0.135 cm C. 0.126 cm D. 0.016 cm