At the supermarket Pryslide, 500ml bottles of shower gel cost $7 each. However, since the beginning of last week there has been a special offer: ‘Buy 2 bottles, get another one for $2.’ Yesterday, the total income from the sales of these bottles was $323. What is the maximum number of bottles that were bought for $2 yesterday?

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.