(15a+10):2

To simplify the expression \((15a + 10) : 2\), you can divide each term in the parentheses by 2.

Here’s how it works:

\[ (15a + 10) : 2 = \frac{15a}{2} + \frac{10}{2} \]

Now, simplify each term:

\[ \frac{15a}{2} + 5 \]

So, the simplified expression is:

\[ \frac{15a}{2} + 5 \]