The sum of the first 10th term of an AP

If you are asking for the formula for the sum of the first $n$ terms of an Arithmetic Progression (AP), it is:

$$S_n = \frac{n}{2}(2a + (n-1)d)$$

where $a$ is the first term, $d$ is the common difference, and $n$ is the number of terms.

For the sum of the first 10 terms ($n=10$), the formula would be:

$$S_{10} = \frac{10}{2}(2a + (10-1)d)$$ $$S_{10} = 5(2a + 9d)$$

Please provide the full question or any specific values for $a$ and $d$ if you'd like me to calculate a numerical sum.