At the student store, pencils are sold in either packs of three or packs of eight. Without opening any packages, which numbers of pencils is it possible to buy?
Which numbers are impossible?

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective