Use the Dynamic Exhibit to answer the following questions.

1. When the ending balance in materials inventory is $40,000, the cost of goods manufactured is $ and net income is $.

2. When the ending balance in materials inventory is $35,000, the cost of goods manufactured is $ and net income is $.

3. When the ending balance in materials inventory is $30,000, the cost of goods sold is $ and net income is $.

4. When the ending balance in materials inventory is $32,500, the cost of goods sold is $ and net income is $.