Evaluate the expression \( 5 z+10 \) when \( z=13 \)

To evaluate the expression \( 5z + 10 \) when \( z = 13 \), follow these steps: 1. **Substitute** the value of \( z \) into the expression: \[ 5z + 10 = 5(13) + 10 \] 2. **Calculate** the multiplication: \[ 5 \times 13 = 65 \] So, the expression becomes: \[ 65 + 10 \] 3. **Add** the numbers together: \[ 65 + 10 = 75 \] **Final Answer:** The value of the expression \( 5z + 10 \) when \( z = 13 \) is **75**.