$$\frac{{{3^0} + {3^{ - 1}}}}{{{3^{ - 1}} - {3^0}}}$$ is simplified to = ?
A. -2
B. -1
C. 1
D. 2
Answer: Option A
A. -2
B. -1
C. 1
D. 2
Answer: Option A
A. $$\frac{1}{2}$$
B. 1
C. 2
D. $$\frac{7}{2}$$
Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:
A. 1.45
B. 1.88
C. 2.9
D. 3.7
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