Will give brainliest
which of the following is a good principle for positive teamwork?
a. provide constructive feedback to colleagues.
b. be the authoritative leader that the group needs.
c. blame only those who do not do their fair share of the work.
d. don't volunteer for work that is not in your job description.

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