Urgent help needed. Thanks in advance.

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

On july 2, year 4, wynn, inc., purchased as a short-term investment a $1 million face-value kean co. 8% bond for $910,000 plus accrued interest to yield 10%. the bonds mature on january 1, year 11, and pay interest annually on january 1. on december 31, year 4, the bonds had a fair value of $945,000. on february 13, year 5, wynn sold the bonds for $920,000. in its december 31, year 4, balance sheet, what amount should wynn report for the bond if it is classified as an available-for-sale security?

The kamp family has twins, rob and rachel. both rob and rachel graduated from college 2 years ago, and each is now earning $50,000 per year. rachel works in the retail industry, where the mean salary for executives with less than 5 years' experience is $35,000 with a standard deviation of $8,000. rob is an engineer. the mean salary for engineers with less than 5 years' experience is $60,000 with a standard deviation of $5,000.