8 ?
Find the arc length of the semicircle.
Either enter an exact answer in terms of or use 3.14 for it and enter your answer as a decimal.
units

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers