Power of a Power

What is the correct law for powers of powers? (a^m)ⁿ =

• a^m x aⁿ

• a^{m x n}

• a^m+n

• a^men

Simplify: (y⁷)²

• y¹⁴

• y⁴⁹

• y⁵

• y⁹

Simplify: (3h²)³

• 27h⁶

• 27h⁵

• 9h⁶

• 9h⁵

What is (x⁷)⁵÷x¹⁰

• x²⁵

• x^2.5

• x^-2

(y²)³

• y⁵
• y
• y²³
• y⁶

(b³)⁴

• b⁷
• b⁴
• b¹²
• b²