Find 
.ln 8xy = ex+y
A. 
B. 
C. 
D. 
Answer: C
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Write the sentence with the fraction as a percent. If necessary, round the percentage to the nearest tenth.By the twenty-first of October, 
of all registered voters had voted early.
A. By the twenty-first of October, 7.5% of all registered voters had voted early. B. By the twenty-first of October, 80% of all registered voters had voted early. C. By the twenty-first of October, 93.8% of all registered voters had voted early. D. By the twenty-first of October, 75% of all registered voters had voted early.
Subtract.(7x5 + 20x3 - 7) - (8x3 + 3x5 + 17)
A. 4x5 + 12x3 + 10 B. -8x8 C. 4x5 + 23x3 + 10 D. 4x5 + 12x3 - 24
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
?
A. x = 1, y = 3, z = 0, w = -3; (1, 3, 0, -3) B. x = -1, y = -3, z = 0, w = 3; (-1, -3, 0, 3) C. x = 1, y = -3, z = 0, w = 3; (1, -3, 0, 3) D. x = -1, y = 3, z = 0, w = -3; (-1, 3, 0, -3)
Find the slope of the line.
A. 1 B. 4 C. -4 D. -1