The problem asks us to complete a bill with the following items: - 3 kg of apples at $3.20/kg - 1.5 kg of pears at $2.40/kg - 4 oranges at $0.75 each - 1 kg of grapes at $3.40/kg After finding the total cost, we need to calculate the change Joyce receives if she pays with a $20 note.

1. Problem Description

The problem asks us to complete a bill with the following items:

- 3 kg of apples at $3.20/kg

- 1.5 kg of pears at $2.40/kg

- 4 oranges at $0.75 each

- 1 kg of grapes at $3.40/kg

After finding the total cost, we need to calculate the change Joyce receives if she pays with a $20 note.

2. Solution Steps

First, calculate the cost of each item:

Cost of apples = (Quantity of apples) * (Price per kg of apples)

$Cost \ of \ apples = 3 \ kg *$3.20/kg = $9.60$

Cost of pears = (Quantity of pears) * (Price per kg of pears)

$Cost \ of \ pears = 1.5 \ kg *$2.40/kg = $3.60$

Cost of oranges = (Number of oranges) * (Price per orange)

$Cost \ of \ oranges = 4 *$0.75 = $3.00$

Cost of grapes = (Quantity of grapes) * (Price per kg of grapes)

$Cost \ of \ grapes = 1 \ kg *$3.40/kg = $3.40$

Next, calculate the total cost:

$Total \ cost = Cost \ of \ apples + Cost \ of \ pears + Cost \ of \ oranges + Cost \ of \ grapes$

$Total \ cost =$9.60 + $3.60 +$3.00 + $3.40 =$19.60$

Finally, calculate the change:

$Change = Amount \ paid - Total \ cost$

$Change =$20.00 - $19.60 =$0.40$

3. Final Answer

The total cost of the items is $19.

6

0. Joyce's change is $0.40.