The sum of the real numbers a and b is 13. Their difference is 5. What is

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The sum of the real numbers a and b is 13. Their difference is 5. What is the value of ab?
A. 5
B. 8
C. 18
D. 36
E. 65

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10 ACT Practice Tests

ISBN: 9780071591461

2nd Edition

Authors: Steven Dulan

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