1.
(17)3.5 × (17)? = 178

2.
$${\text{If}}\,{\kern 1pt} {\left( {\frac{a}{b}} \right)^{x - 1}} = {\left( {\frac{b}{a}} \right)^{x - 3}},$$     then the value of x is

3.
Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:

4.
If 5a = 3125, then the value of 5(a - 3) is:

5.
If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:

6.
(256)0.16 × (256)0.09 = ?

7.
The value of [(10)150 ÷ (10)146]

8.
$$\frac{1}{{1 + {x^{\left( {b - a} \right)}} + {x^{\left( {c - a} \right)}}}}$$    $$ + \frac{1}{{1 + {x^{\left( {a - b} \right)}} + {x^{\left( {c - b} \right)}}}}$$    $$ + \frac{1}{{1 + {x^{\left( {b - c} \right)}} + {x^{\left( {a - c} \right)}}}} = ?$$

9.
(25)7.5 × (5)2.5 ÷ (125)1.5 = 5?

10.
(0.04)-1.5 = ?

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