Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. 3
B. 
C. 2
D. 2
Answer: C
Mathematics
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Draw the angle.330°
A. 
B. 
C. 
D. 
Mathematics
Solve the equation using both the addition and multiplication properties of equality.3r + 7 = 31
A. {21} B. {25} C. {3} D. {8}
Mathematics
Solve the equation. First simplify the expression by combining like terms.
(r + 6) = 
(r + 8)
A. -2 B. -1 C. 2 D. 1
Mathematics
Write the first four terms of the sequence.an = (-1)n-1(6n - 4)
A. a1 = -2, a2 = 8, a3 = -14, a4 = -20 B. a1 = 2, a2 = -8, a3 = 14, a4 = -20 C. a1 = 2, a2 = -16, a3 = 14, a4 = -20 D. a1 = 2, a2 = 8, a3 = 14, a4 = 20
Mathematics