strings and sets

lists and arrays

characters, integers, and floating point numbers

all of these

input facility

output facility

both input and output facilities

no input and output facilities

local variables

internal variables

external variable

global variables

int

unsigned

int

unsigned

finds hypotenuse of triangle with sides a + 2 and b+3

finds square root of (a + 2)2 + (b + 3)2

is meaningless

finds square root of 3*a + 4*b + 5