Find the rational number halfway between the two given rational numbers.
, 
A. 
B. 
C. 
D. 
Answer: C
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Simplify.
A. 
B. 
C. 
D. 
Solve the problem.To get credit for graduation, Brittany completed 20 hours of community service. She worked at a soup kitchen for 
of the time. She picked up litter along highways for 
of the time. The rest of the hours she spent tutoring younger children after school. How much time did Brittany spend tutoring?
A. 8 hours
B. 7
hours
C. 9
hours
D. 8
hours
Determine whether the equation is an identity, a conditional equation, or an inconsistent equation.4(5x + 30) = 20x + 120
A. Identity B. Conditional equation C. Inconsistent equation
The sequence is defined recursively. Write the first four terms.a1 = w; an = an-1 + R
A. w, w - R, w - 2R, w - 3R B. w, R, 2R, 3R C. w, w + R, w + 2R, w + 3R D. R, R + w, R + 2w, R + 3w