Tap the ____________________ key to recalculate an answer.

A recursive method that computes the number of groups of k out of n things has the precondition that ______.

a) n is a positive number and k is a nonnegative number b) n is a nonnegative number and k is a positive number c) n and k are nonnegative numbers d) n and k are positive numbers

Which of the following absolute pathnames is interpreted as "the chem.htm file is in the tutorial folder, which is a subfolder of the tutorial02 folder"?

A. /tutorial02_tutorial_chem.htm B. tutorial02/tutorial/chem.htm C. /tutorial02/tutorial/chem.htm D. tutorial02\tutorial\chem.htm