Thabo is having a party he need the following : 18 chocolates and 20 packets of chips, There is the sale of buy 2 and get 1 free sale, How many chocolates should Thabo buy so that he will have 18 chocolates in the end?​

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?