Calculate the Percentage: What is 138 Divided by 10?

To solve this problem, follow these steps:

• Step 1: Identify the given values. The "part" value is 138, and the "whole" value is 10.

• Step 2: Use the percentage formula:

  $\text{Percentage} = \left(\frac{\text{part}}{\text{whole}}\right) \times 100$

• Step 3: Perform the division of the part by the whole:

  $\frac{138}{10} = 13.8$

• Step 4: Convert the result to a percentage by multiplying by 100:

  $13.8 \times 100 = 1380$

Therefore, 138 is 1380% of 10.

The correct choice from the provided answers is: 1380%.