Complete the given operations with the following complex expressions:(3+4i) and (5 - i) a) Subtract (3 + 4i) and (5 - i)=
b) Multiply (3 + 4i) and (5 - i)=

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price