Answer: increase; average fixed cost to decrease
Explanation:
Abbas produced 400,000 jars which is more than those produced by Taste of Base. With a higher quantity of jars produced, we can expect that they will sell more jars which means that Abbas' quantity sold will increase.
Average fixed cost is calculated by dividing Fixed costs by quantity produced. If Abbas produces more jars as they did, the quantity dividing fixed costs will be more which means that the Average Fixed cost will be less. Simply put, there is less fixed cost per jar, the higher the number of jars produced.