Please help!! Giving brainliest and extra points! (Click on photo)

An appliance salesman sets a goal to sell an average of 6 appliances per day for the first two weeks of his new job. the dot plot shows the number he sold each day during the first 13 days. what is the minimum number of appliances he must sell on the 14th day in order to reach his goal? a) 5 b) 6 c) 7 d) 8

What is the upper quartile in the box plot?

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?