Ellen spent $15.45 on lunch at a restaurant. How much will she pay for a 20% tip? What is her total cost for lunch with the tip? make sure to answer both questions.
To calculate the tip, we need to find 20% of $15.45.
$15.45 * 20/100 = $3.09
So, Ellen will pay $3.09 for a 20% tip.
To find the total cost of lunch with the tip, we need to add the cost of lunch and the tip.
$15.45 + $3.09 = $18.54
Therefore, Ellen's total cost for lunch with the 20% tip is $18.54.