A. Given

1. The root number (3) is the denominator.
2. The power (1) is the numerator.
3. Exponential form = 

B. Given

1. The root number (7) is the denominator.
2. The power (2) is the numerator.
3. Exponential form =

C. Given

1. The root number (5) is the denominator.
2. The power (1) is the numerator.
3. (8y) is the base.
4. Exponential form = (8y)^1/5

D. Given

1. The root number (understood 2) is the denominator.
2. The power (3) is the numerator.
3. 8 is the coefficient.
4. Exponential form =