Answer:
A) n^15
B) 8z^12
C)(y^3)/(z^6)
Step-by-step explanation:
For a), it's basically n*n*n*... * n 8 times multiplied by n*n*n* .. *n 7 times, which is n multiplied by itself 15 times. So the answer is n^15
For b), you simplify 2z^4 to 2*z^4. Now, it is 2^3*z^4^3, and when you exponent an exponent, you multiply, so it is 8*z^12
For c) y^5/y^2 = y^3, and z^-2/z^4 = 1/z^6. Multiply them together to get y^3/z^6
