Jeremy bought six and a half pounds of candy hearts and a card to give to his girlfriend on valentine's day he spent a total of $19.50 on both if the card cost a dollar fifty how much did he spend per pound on candy hearts

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?