The bill for dinner totaled $56 before tax and tip. the restaurant added a 6 percent sales tax. if sandra wants to include a 16 percent tip calculated on the bill before sales tax is added, what is the total cost of the dinner?

So you need to find the bill after adding the tip, before the tax.
First, multiply 56*1.16 to find the total of bill with tip which equals to $64.96.
After finding the total bill with tip, you find the bill with tax the same way.
64.96*1.06= 68.8576
So the total cost of the dinner is $68.86

$68.32

Step-by-step explanation:

Before tip and tax, the total is $56.

The restaurant added 6% sales tax.

6% sales tax on $56 is: 6% * $56 = 0.06 * $56 = $3.36

Sandra wants to pay a tip of 16% on $56.

16% of $56 = 0.16 * $56 = $8.96

The total is the cost before tip and tax plus the tax plus the tip.

Total = $56 + $3.36 + $8.96

Total = $68.32

It is (6,11) just find the numbers that are in both sets.