To be called the Order of the Maandor of minors nonzero in a Matrix

Select the appropriate response:
A) Ratio of a Matrix
B) Opposite of a matrix
C) Diagonal of a matrix
D) Range of a matrix

Help please 20 points!

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