Jabari owns 100 shares of stock a and 45 shares of stock b. for the past month, his stocks have been fluctuating inversely each week. stock a decreased by m cents per share. which equation can be used to find the total change in value of his shares?
a. v=(100*-m) + (45*n)
b. v=(100*m) + (45*-n)
c. v=100(4*-m)+ 45(4*n)
d. v=145(-m*n)