Determine the integer needed to fill in the blank and make a true statement.3 ? 
? 5 = 
A. 3
B. 1
C. 
D. 
Answer: C
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Add and simplify. If the answer is an improper fraction, write it as a mixed number.
+ 
A. 
B. 
C. 
D. 
Solve the polynomial inequality. Express the solution using interval notation.x2 < 36
A. (-?, -6] ? [6, ?) B. [-6, 6] C. (-?, -6) ? (6, ?) D. (-6, 6)
Solve the problem.If $2100 is deposited in an ordinary annuity at the end of each quarter for 9 yr and earns 5% interest compounded quarterly, how much will be in the account at the end of this term?
A. $92,623.14 B. $23,685.64 C. $805,025.11 D. $94,742.56
Obtain an equivalent system by performing the stated elementary operation on the system. Replace the third equation by the sum of itself and -1 times the second equation. x - 2y - 7z = 17-9x + 4y + 8z = -9 7x + 6y - z = -4
A. x - 2y - 7z = 17 -9x + 4y + 8z = -9 -16x - 2y + 9z = 5 B. x - 2y - 7z = 17 16x + 2y - 9z = 5 7x + 6y - z = -4 C. x - 2y - 7z = 17 -9x + 4y + 8z = -9 -2x + 10y + 7z = -13 D. x - 2y - 7z = 17 -9x + 4y + 8z = -9 16x + 2y - 9z = 5