There are: 2 pens in each pack of black pens

5 pens in each pack of red pens

6 pens in each pack of green pens

On Monday

number of packs sold of black, red and green pens = 7 : 3 : 4

A total of 212 were sold.

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?