(100Pts & mark brainliest)
7. How are stock speculators different from stock investors?
O A. Speculators hold stock for short periods of time.
O B. Speculators hold stock for long periods of time.
O C. Speculators invest only in long-term bonds.
O D. Speculators purchase stock in companies.

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