Answer: The required number of dollars is 16.5 dollars.
Step-by-step explanation: Given that Tommy can exchange 8 euros for 11 dollars.
We are to find the number of dollars that Tommy get with 12 euros at this rate.
We will be using the UNITARY method to solve the given problem.
Number of dollars that Tommy get for 8 euros = 11 dollars.
So, the number of dollars that Tommy get for 1 euro will be
![(11)/(8).](https://img.qammunity.org/2019/formulas/mathematics/middle-school/x68oshy1to52kts5v6cg8i404jcsxy6pm6.png)
Therefore, the number of dollars that Tommy get for 12 euros is given by
![(11)/(8)*12=(33)/(2)=16.5.](https://img.qammunity.org/2019/formulas/mathematics/middle-school/gi4blha74yd3oaithiwf7le5dyrvcm89hv.png)
Thus, the required number of dollars is 16.5 dollars.