Convert the following expressions into statements. Also , find variables and constants in each of the following.
`15x + 4`.

Answer

To convert the expression \(15x + 4\) into a statement and identify the variables and constants, we can follow these steps:

### Step-by-Step Solution:

1. **Convert the Expression into a Statement**:
- The expression \(15x + 4\) can be interpreted as "15 times a number \(x\) plus 4."
- Therefore, we can write the statement as: "4 more than 15 times a number \(x\)."

2. **Identify the Variable**:
- In the expression \(15x + 4\), the variable is represented by the letter \(x\).
- Thus, the variable is: \(x\).

3. **Identify the Constants**:
- The constants in the expression are the numerical values that do not change. In this case, we have:
- \(15\) (the coefficient of \(x\))
- \(4\) (the constant added to the expression)
- Therefore, the constants are: \(15\) and \(4\).

### Final Summary:
- **Statement**: "4 more than 15 times a number \(x\)."
- **Variable**: \(x\)
- **Constants**: \(15\) and \(4\)