Answer:
The answer would be
=17 because the food cost 85% of Andy's bill, that is, $17.
Explanation:
Since 15% of the $20 bill Andy paid was for drink, it means that (100−15)% of the same amount will be for food. Hence, the food came to 85% of the bill.The amount (x) Andy paid for food therefore is:
= 20 x 85/100
= 1 x 85/5
= 85/5
= 17
So, the answer would be 17$.