Question 930938
First let's find what 11% of $9.99 is. Multiply 9.99 by 0.11.

{{{9.99*0.11=1.0989}}}

Round the answer to the nearest hundredth to get $1.10.

Now add $1.10 to $9.99.

{{{1.10+9.99=11.09}}}

He will pay $11.09 for the Sunstache Sunglasses.