Please help me urgent

Step-by-step explanation:

each box has 12 melon for 15 dollars:

the price of one melon : 15/12=1.25 dollar each

he bought 12 boxes of melon and paid 15 dollars for each :

12*15=180 dollars

total melon is : 12*12=144 dollars

he sold 3/4 of a melon : 3/4 *144=108

the cost of 108 : 108*1.25= 135 dollars

at a price of $ 1.6 = 108*1.6= 172.8

the rest of the melon sold at reduce price=

144-108= 36

over all profit = 15 %

180*(1+0.15)=207 dollars profit

selling 108 melons : $172.8

overall profit - profit from selling 108 melons: 207-172.8=$34.2