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?

Answer is A

(100*-m)+(45*n)

Step-by-step explanation: because stock a decreases per sock so your going to multiply 100 times -m because it is decreasing so it will be negative

Then it will be 45*n because it increase per number of stocks so you multiply 45 which is the number of stocks times n

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer