Answer:
$19.01 I think
Explanation:
you have to divide the total price by 120 because the family is paying what the food cost...the 100% and then they add 20% of that 100% to make 120%...therefore...when you divide the price by 120 you'll get 1%. Finally you multiply the 1% by 20 to find the tip.
$114.10 ÷ 120 = 0.95 × 20 = the tip ( $19.01 )
I'm sorry if that doesn't make sense