Plaid Pants, Inc. common stock has a beta of 0.90, while Acme Dynamite Company common stock has a beta of 1.80. The expected return on the market is 10 percent, and the risk-free rate is 6 percent. According to the capital-asset pricing model (CAPM) and making use of the information above, the required return on Plaid Pants' common stock should be and the required return on Acme's common stock should be .

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