Let's break this down step by step:

1. Bananas:

• Fred paid $4.90 after using a $3 coupon.
• The total cost of the bananas before applying the coupon was:
  $4.90 + 3 = 7.90 \text{ dollars}$

2. Peaches:

• Fred paid $8.29 for peaches.

3. Total cost:

Now, the total amount Fred spent is: $7.90 + 8.29 = 16.19 \text{ dollars}$

4. Payment and Change:

Fred paid with a $20 bill. To find the change, subtract the total cost from the $20: $20 - 16.19 = 3.81 \text{ dollars}$

Final Answer:

Fred received $3.81 in change.

Do you want any details or have further questions?

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Here are 5 related questions to expand on this:

1. How would the total change differ if Fred didn't have the $3 coupon?
2. What percentage of the $20 did Fred spend?
3. If Fred received an additional coupon for the peaches, how would that affect his total cost?
4. How much would Fred spend if the price of bananas increased by 10%?
5. What would Fred's total be if he bought an extra kilogram of peaches at the same price per kilogram?

Tip: Always check if your given coupon or discount applies before calculating the total.