Solve the problem.The lengths of the sides of a triangle (measured in feet) are x, x + 400, and x + 500. If its perimeter is 1800 feet, find the lengths of the sides.
A. 100 ft, 200 ft, 300 ft
B. 300 ft, 700 ft, 800 ft
C. 400 ft, 800 ft, 900 ft
D. 400 ft, 400 ft, 400 ft
Answer: B
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Convert the units using unit fractions.87 qt = 
gal
A. 174
B. 21
C. 84
D. 43
Decide whether the statement is true or false. If it is false, tell why.If k is a negative integer, then x2 = k will have two irrational solutions.
A. True B. False; the equation will have no real number solutions. C. False; the equation will have two rational solutions.
Solve the problem.A wheel is rotating at 6 radians/sec, and the wheel has a 82-inch diameter. To the nearest foot per minute, what is the velocity of a point on the rim?
A. 1225 ft/min B. 1230 ft/min C. 1220 ft/min D. 1235 ft/min
Graph the system of inequalities, and find the coordinates of the vertices.2x + y ? 4 y - 1 ? 0
A. 
B. 
C. 
D. 