If you pay $9 for a service and give a $20 tip, the total amount you would pay is:
\[ 9 + 20 = 29 \]
So, the total would be $29.
1 answer
If you pay $9 for a service and give a $20 tip, the total amount you would pay is:
\[ 9 + 20 = 29 \]
So, the total would be $29.