Shawn, Inc. makes Lego figures. The budget reports Shawn plans on selling 15 figures in November, 20 in December, and 5 in January all on credit. Each figure sells for $20 and costs Shawn $5. Shawn receives 50% of the current months sells during the current month and 50% in the following month. Shawn pays 100% of his costs in the current month. Shawn makes sure he has 40% of next months sales available in inventory at the end of the current month. Based on this, Shawn begins November with 6 figures already made.

1. How much cash will Shawn receive from customers in December?

2. How much cash will Shawn receive from customers in January?

3. How much will Shawn's cash account change in December?