Question

Estimate a 15% tip for each amount.
1. $68.50
2.$30.80
3.$9.89
4.$27.59

Answer 1

Multiply each # by 1.15 (the amount is increasing by 15%) to get the answers.
1 = 78.775 (78.78)
2 = 35.42
3 = 11.3735 (11.37)
4 = 31.7285 (31.73)

Answer 2

$68.50 : $10.28
$30.80 : $5.82
$9.89 : $1.48
$27.59 : $4.14