Extend the Arithmetic example from the course notes to include classes Minus, Mult and Divide. Each of these should override the eval() method to perform the correct operations. For each class, including the ones I’ve already provided, write a toString() method that returns a String containing a text version of the part of the arithmetic problem in the subtree rooted at the current node

Arecipients list has been loaded into a document. which commands should be clicked in order to filter the list so that letters will not be printed for recipients who live in a certain state? mailings tab, start mail merge, select recipients, type new list, then insert only contacts from the desired states mailings tab, rules, select recipients, use existing list, then choose a recipients list that includes only contacts in certain states mailings tab, select recipients, use existing list, rules, fill in, then type in certain states mailings tab, rules, skip record select “state” under field name, then type in the state name under “equal to”