Exponent Practice

How would you change this to a positive exponent:
1/x^-3

• 1/x³
• x³
• 3x
• 1/3x

x⁻⁶

• 1 ⁄ x⁶
• x⁶
• -x⁶
• -1 ⁄ x⁶

(-2)³⋅(-2)⁶

• (-2)⁹
• (-2)¹⁸
• (-2)⁻³
• (-2)

8⁷ ⁄ 8²

• 8⁵
• 8⁹
• 8¹⁴
• 1⁵

x⁵⁄x³

• x²
• x
• 1
• x⁸

3⁻⁴

• 1 ⁄ 3⁴
• -3⁴
• 3⁴
• 1 ⁄ 12

Simplify the following expression: 
xy^-7

• xy⁷
• x/y⁷
• x⁷/y
• x⁷y

Simplify (-4r⁵)(2r⁸)

• -8r¹³
• -2r¹³
• -8r⁴⁰
• -2y⁴⁰

Anything raised to a power of zero is always: 

• 0
• 1
• itself
• infinity

(34x⁵y⁶z^-7)⁰

• 34x⁵y⁶ / z⁷
• 34x⁵y⁶ / x^-7
• 0
• 1