Suppose that a phone that originally sold for $800 and loses 3/5 of its value each year after it is released. 3. Write an equation for the value of the phone, p, t years after it is released.

Abari owns 100 shares of stock a and 45 shares of stock b. for the past month, his stocks have been fluctuating inversely. 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 per month?