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 and stock b increased by n cents per share. which equation can be used to find the total change in value of jabari's shares?

a. v=(100*-m)+(45*n)
b. v=(100*m)+(45*-m
c. v=100(4*-m)+45(4*n)
d. v=145(-m*n)