Question

Carlton spent $21.85 on lunch for himself and a friend. About how much should he leave for a 15% tip?

Answer 1

Answer: $3.25

Explanation:

10% of $21.85 = $2.19

5% is half of the 10% which is $1.10

$2.19 + $1.10 = $3.29 or a better estimate is $3.25

Answer 2

about $3.28 or $3.30 (rounded up)