Answer: $0.85 per tomato
Explanation:
To find the unit rate, we need to determine the cost of one tomato. We can do this by dividing the total cost of the four tomatoes by the number of tomatoes:
$3.40 ÷ 4 = $0.85
Therefore, the cost of one tomato is $0.85. The unit rate can also be expressed as a fraction, which is:
$0.85 per tomato, or 85 cents per tomato