the graph shows the price, in dollars, of different numbers of sweet breads at alan's store. the table shows the price, in dollars, of different numbers of shortcakes at the same store. a graph shows number of sweet breads on x-axis and price of sweet breads on y-axis. the x-axis scale is shown from 0 to 30 at increments of 5 and the y-axis scale is shown from 0 to 160 at increments of 20. a straight line joins the ordered pairs 5, 20 and 10, 40 and 15, 60 and 20, 80 and 25, 100 and 30, 120. shortcake number of shortcake price of shortcake (dollars) 5 45 10 90 15 135 20 180 how many dollars more is the price of a shortcake than the price of a sweet bread at david's store?