I need help writing journal entries for these problems:

1. March 3: The company sells a customer 21 desktop computers at $515 each. Assume that the company uses a LIFO cost flow assumption, and that the companys inventory before the sale had 15 desktop computers that cost $340 each from September 20X1 and 18 computers that cost $350 each from November 20X1.
2. February 1: The company purchases new equipment for $30,200. The company also pays $200 for shipping the equipment and $500 for equipment installation. The equipment is assumed to have a $1,000 salvage value and 6 years of useful life.