On March 30,2011 Aqua was required to ship 40 inflatable boats to Coastal Boats Ltd at a price of $310 each and FOB shipping point. Unfortunately, the boats were left on the loading dock until April 2, 2011. Coastal provided a $3100 deposit on March 30. The boats cost 170$ each. Record sale and adjustment to inventory. Year end is March 31, 2011

I think the actual sale would be:
DR. Cash $3100
CR. Accounts Receivable $?
CR. Sales $?

Dr. Cost of Goods Sold $?
CR. Inventory $?

And then for adjusting, would I:

DR. Accounts payable? But for how much?
CR. Unearned revenue? Again can't figure out how much

Have you read the definition of FOB shipping point? You'll want to understand what that means. You can figure out your amounts by multiplying the sales price and costs by the number of boats in the question (40). You will want to show your entries by date. What would you record on March 30? What would you record on April 2? Also, are you being asked for the entries for Aqua, Coastal, or both? If you will repost your answers, we can check them for you. Thanks.

A company paid 314,000 for a machine that was expected to last five years and have a salvage value of $40,000. During the third year of the machine's life, $37,000 cash was paid for replacement parts that were expected to increase the machine's productivity by 10% each year. Prepare the journal entry to record the $37,000 cost incurred in the third year.