@tcav12579 and for #4, it is a like-kind exchange because it's a “trade-in.” There are a couple ways to calculate the basis of your new asset, but I did it this way:
Adjusted basis of assets transferred = 23,300 (cash) + 2,088 (adjusted basis of old van).
To get the adjusted basis of the old van, I referenced the depreciation worksheet and subtracted the beginning balance of 18,125 – beg A/D balance (14,993) – current year depreciation (1,044) = 2,088.
Normally, you'd also need to add any gain recognized and subtract the FMV of boot, but there wasn't any in this problem since Lina was the one paying the extra cash.
Another way to get the same answer is to take the FMV of like-kind property received (30,200, cost of the new van) – deferred gain (5,012). The 5,012 comes from sum of the cash and basis of the old van (25,388). This means we are getting a van worth $30,200 in exchange for property with a basis of $25,388.
Let me know if that doesn't make sense! I'm trying to work through all this too haha I take REG on Friday 🙂