Your parents took your family out to dinner. Your parents want to give the waiter a 15% tip. If the total amount of the dinner was $42.00, what amount should be left to the waiter for tip.
To calculate a 15% tip, simply take 10% of the tip, in this case $4.20, then take 50% of that number. 50% of $4.20 is $2.10. Then you add those two numbers together, $4.20+$2.10=$6.30
