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The total price including the discount and tip is $ 189
<em><u>Solution:</u></em>
Given that, Mr. Oliver orders his groceries online and has them delivered to his house
From given,
Bill amount = $ 175
Discount = 10 % off
Tip = 20 %
To find: total price including the discount and the tip
<em><u>Let us first find the discount rate</u></em>
Discount rate is 10 % off which means 10 % of bill amount $ 175
Thus discount price is $ 17.5
Bill amount after discount = Original amount - discount price
Bill amount after discount = 175 - 17.5
Bill amount after discount = $ 157.5
He plans to give the delivery driver a 20% tip
So, he gives 20 % of 157.5 as tip
Tip amount = 20 % of 157.5
<em><u>Thus total amount paid is:</u></em>
Total amount = Bill amount after discount + Tip amount
Total amount = $ 157.5 + $ 31.5
Total amount = $ 189
Thus total price including the discount and tip is $ 189