Solve the equation.2c - 9 = -9
A. c = 0
B. c = -18
C. c = 18
D. c = 9
Answer: A
Mathematics
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Solve the problem.A collection of dimes is arranged in a triangular array, with 15 coins in the base row, 14 in the next, 13 in the next, and so forth. Find the value of the collection.
A. $1.20 B. $12.00 C. $24.00 D. $6.00
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Find an equation of the line that passes through the points (1, 3) and (3, 13). ?
A. 
B. 
C. ?
D. ?
E. ?
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Solve the problem.It took three assembly-line workers 4.21 seconds, 5.882 seconds, and 4.5 seconds to assemble a product. How many seconds in all did they work?
A. 14.592 sec B. 8.71 sec C. 10.092 sec D. 6.172 sec
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