Isabel received a $90 gift card for a coffee store. she used it in buying some coffee that cost $8.17 per pound. after buying the coffee, she had $49.15 left on her card. how many pounds of coffee did she buy

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?