Arestaurant bill comes to $28.35 find the total coast if the tax is 6.25% and 20% tip is left on the amount before tax

The total cost  of the bill = $36.146

Step-by-step explanation:

Here, the total amount  of the bill = $28.35

Now, the amount of tip = 20%

So, calculating 20% on the bill amount, we get

or, the amount of 20% tip = $5.67

So, the total bill amount  after 20% tip = Bill Amount + Tip

= $28.35 + $5.67 =  $34.02

Now, the tax is calculated on the amount of  bill $34.02.

or, the amount of tax on the bill = $2.126

So, the total bill amount  after 6.25% tax  = Bill Amount + Tax

=  $34.02 + $2.126 = $36.146

Hence, the total cost  of the bill = $36.146.