Jaylynn was buying new mascara. she bought it on sale for $5.56. if the price represents a 20% discount from the original price, what is the original price to the nearest cent?

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?

Can someone show me step by step how to do this?

Find the slope intercept form of (-3,6) and (3,-6)