Round the number to the place value indicated.31,59

A. 31,550
B. 31,560
C. 31,650
D. 31,540

Answer: A

Mathematics

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Sketch an abacus to represent the given number.515

A.

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Solve the problems.Jarod calculated the speed of a train to be 28 feet per second. Calculate the speed in miles per hour. Round to the nearest whole number.

A. 15 mi/hr B. 22 mi/hr C. 16 mi/hr D. 19 mi/hr

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Find an equivalent equation in rectangular coordinates.r - 5 sin ? = 6 cos ?

A. x2 + y2 = 0
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