You sell a smartphone that was originally priced at $600 but is now on sale for 20
% off. you give a loyalty customer an additional 10% discount. what is the total percent of discount the customer receives on the purchase?

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220