If x³ = 216, then x equals

• 6

• -6

• 9

• -9

7⁰ equal to

• 7

• 1

• 0

• -7

The reciprocal of -2

• 2

• 1/2

• -1/2

• -2

Expression of 2187 as a ower of 3 is

• 3⁴

• 3⁸

• 3⁹

• 3⁷

The value of (2/5)⁴ ÷ (2/5)⁶

• 4/25

• 25/4

• 2/5

• 5/2

Find the value of x

49^2x-1 = (343)⁶

• 2

• 7

• 5

• -5

(-1)⁹ × (-1)⁷ =

• 1

• -1

• 7

• 9

Fill in the blaks

3.6 × 10² ............... 2.98 × 10⁵

• >

• =

• <

• None of these

Find the value of x, when

(2/3)^x = 16/81

• 2

• 3

• 5

• 4

Evaluate

(-3/-7)³

• 27/343

• 343/27

• -27/343

• -343/27