The scores of the first 6 competitors in a contest have a mean of 28 points
When the 7th competitor is included the
mean decreases to 27 points.
How many points did the 7th competitor
score?

Which statement describes surface features called maria on the moon

Henry's butcher shop uses an electronic scale that measures to 1/100 of a pound. which is the most accurate measurement based on the limitations of the scale that might be found on a package of meat sold by henry?

Mr. barth is painting an arrow on the school parking lot. he plots the arrow on the coordinate plane as shown below. what is the area of the arrow he is painting?