One throw

One throw of each scale type

One throw of each programmer defined type

As many throws of as many types as necessary

maximum of a, b

positive difference of a, b

sum of a, b

minimum of a, b

find(a, b) + find (b, a)

find (a, find(a, b))

a + find (a, b)

b + find(a, b)

call by value

call by reference

call by value result

none of above

helps to avoid repeating a set of statements many times

enhances the logical clarity of the program

helps to avoid repeated programming across programs

all of the above