Write each expression using the LCD as the denominator.
and 
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Answer: C
Mathematics
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Simplify the numerical expression.4(4.6) - 7(2.6) - 2(-2.9)
A. –74.98 B. 30.76 C. –5.6 D. 5.6 E. 6
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Write 0.0023 in scientific notation.
A. 2.3 × 10-3 B. 23 × 10 C. 2.3 × 103 D. 0.23 × 10-2
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Write the improper fraction as a mixed or whole number.-
A. -146
B. -
C. -148
D. -21
Mathematics
Solve the problem.Jill is 5 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1 km/hr. They meet in 2 hours. How fast is Joe walking?
A. 3.5 km/hr B. 1.25 km/hr C. 1.5 km/hr D. 3 km/hr
Mathematics