Answer: The answer would be 5:25.
Step-by-step explanation: To solve problems like this, you have to pay attention to what kind of ratio they're asking for. In this case, they want bananas to total fruit, so your ratio would be set up like this:
bananas:fruit
Now, just substitute for the values given. There are 5 bananas, and 9 apples plus 5 bananas plus 4 peaches plus 7 oranges equals 25 pieces of fruit in total. So, the ratio is 5:25. Remember, the ratio is bananas to total fruit; the bananas are listed first and therefore would come before the amount of fruit. Hope this helps!