2+9:2

The expression 2+9:2 can be solved by following the order of operations (PEMDAS/BODMAS). According to the rules, you need to perform the division first, then the addition.

So, the expression becomes: 2 + (9 divided by 2)

Next, we divide 9 by 2: 2 + 4.5

Finally, we add 2 and 4.5 together: 6.5

Therefore, the solution to 2+9:2 is 6.5.