To determine which expression represents the total cost of purchasing b bunches of bananas and a apples, let's analyze the costs involved step-by-step:
1. Cost of Bananas:
- Each bunch of bananas costs \[tex]$4.
- If you buy \(b\) bunches of bananas, the total cost for the bananas would be \(4b\) dollars.
2. Cost of Apples:
- Each apple costs \$[/tex]0.60.
- If you buy [tex]\(a\)[/tex] apples, the total cost for the apples would be [tex]\(0.60a\)[/tex] dollars.
3. Total Cost:
- The total cost is the sum of the cost of bananas and the cost of apples.
- Therefore, the total cost expression is [tex]\(4b + 0.60a\)[/tex].
Given these steps, the correct expression that represents the total cost is:
[tex]\[ 4b + 0.60a \][/tex]
Among the provided options, the correct answer is:
[tex]\[ \boxed{4b + 0.60a} \][/tex]
