Mulitplying Exponents

Expand and choose the simplified expression of:x³y⁶x²

• (xy)¹¹
• x⁵y⁶
• x⁶y⁶
• xy⁶

Expand and choose the simplified expression of:(5x²y⁴)(2xy)

• x³y⁵
• 7x³y⁵
• 10x³y⁵
• x²y⁴

Which is the expanded version of:  3x³y⁵x²

• 3*x*x*x*y*y*y*y*y*x*x
• 3*x*y*x
• 3*3*3*x*x*x*y*y*y*y*y*x*x

Simplify
m⁵⋅m²

• m⁷
• m³
• m¹⁰
• m²