Robert buys 3 pounds of bananas at $0.50 per pound and 3 pounds of apples at $1.00 per pound. Which

Robert buys 3 pounds of bananas at $0.50 per pound and 3 pounds of apples at $1.00 per pound. Which of the following expressions represents the total cost of the fruit he bought (in dollars)?

Total Cost of Fruit = Bananas in pounds * cost per banana pound + Apples in pounds * cost per apple pound
Total Cost of Fruit = 3($0.50) + 3($1.00)
Total Cost of Fruit = $1.50 + $3.00
Total Cost of Fruit = $4.00