4% of 10.50 then add the answer to 10.50

To find 4% of 10.50, you can multiply 10.50 by 0.04:

\[ 10.50 \times 0.04 = 0.42 \]

Next, you add this result to 10.50:

\[ 10.50 + 0.42 = 10.92 \]

So, 4% of 10.50 added to 10.50 gives you 10.92.