The George family ate out at a restaurant and wants to leave a 15% tip. Their meal cost $42.00 before tip. How much will they pay for their meal, including tip?

They will pay
$
48.30
for their meal including tip.
Explanation:
So let convert 15% to a decimal value before we start solving anything. So you simply divide 15 over 100 like this:
15
100
which gives you 0.15.
So to find out how much tip they are giving, you multiply 0.15 by 42.00. Here is what I am saying shown below:
0.15
⋅
42.00
=
?
So let compute that by plugging that into the calculator which we get
$
6.3
.
Now, we can add that back to the meal cost as shown below:
42.00
+
6.30
=
?
Our final answer is:
$
48.3

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