Cube Roots of Compound Expressions.

2. $1\frac{13}{47}$ dy.

3. $1\frac{1}{20}$ dy.

4. $15$ dy.

5. $12$ hr.

6. $10$ dy.

[5]Exercise59.

1. $7\frac{5}{13}$ hr.

2. $2\frac{2}{5}$ hr.

3. $\frac{10}{11}$ hr.

4. $1\frac{1}{13}$ hr.

5. $30$ hr.

[4]Exercise60.

1. $36$ mi.

2. $26$ hr.

3. $8$ mi.

4. $240$ mi.

Exercise61.

1. $600$.