Simplify the expression.6a - 2a + 4
A. 8a + 4
B. 8a
C. -4a + 4
D. 4a + 4
Answer: D
Mathematics
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Determine the indicated arc or angle.Find ?ACB.
A. 60° B. Not enough information. C. 120° D. 90°
Mathematics
Fill in the blank with one of the words or phrases listed below.
A(n) 
is a fraction whose numerator is greater than or equal to its denominator.
A. proper fraction B. prime number C. mixed number D. improper fraction
Mathematics
Use the encoding matrix E = 
, an additional coding matrix, F = 
, plus the matrices I = 
and O = 
to answer the question.EF
What will be an ideal response?
Mathematics
Solve.The seats in a lecture hall are arranged in 17 rows with 8 seats in each row. How many seats are in this lecture hall?
A. 136 seats B. 144 seats C. 146 seats D. 128 seats
Mathematics