Answer:
$30.50
Explanation:
9 cucumbers- 6=$2
9-6=3, is half of 6 so it would be half the price so $1. $2+$1=$3 total for cucumbers
18 peppers- 12=$9
18-12=6, is half of 12 so it would be half the price so $4.50. $4.50+$9=$13.50
21 tomatoes- 6=$4
6•3=18=$12, 21-18=3, is half of 6 so it would be half the price so $2. $12+$2=$14