Answer:
She made a profit of $6.85
Explanation:
she started out with 25 mangos for $7.50
she then sold 12 mangos for $7.15 leaving her with 13 mangos
she then sold the remaning mangos for 7.20
add $7.15 to $7.20 and you get $14.35
thats the gross profit, and you subtract that by $7.50, how much she bought the mangos for, to get her total net profit.
which is $6.85