Answer:## Step 1: Calculate the total cost of the bangusTo calculate the total cost, multiply the cost per kilo by the number of kilos.Total cost = Cost per kilo × Number of kilos= 105.75 × 3= 317.25## Step 2: Calculate the changeTo calculate the change, subtract the total cost from the amount Francis paid with.Change = Amount paid - Total cost= 500 - 317.25= 182.75The operations used are multiplication and subtraction.The final answer is: $\boxed{182.75}$