Prepare the necessary journal entries to record the following transactions, assuming a periodic inventory system: (a) Purchased $450,000 of merchandise on account, terms 2/10, n/30. (b) Returned $30,000 of damaged merchandise for credit. (c) Paid for the merchandise purchased within 10 days.

Xinhong company is considering replacing one of its manufacturing machines. the machine has a book value of $39,000 and a remaining useful life of 5 years, at which time its salvage value will be zero. it has a current market value of $49,000. variable manufacturing costs are $33,300 per year for this machine. information on two alternative replacement machines follows. alternative a alternative b cost $ 115,000 $ 117,000 variable manufacturing costs per year 22,900 10,100 1. calculate the total change in net income if alternative a and b is adopted. 2. should xinhong keep or replace its manufacturing machine