How do you evaluate an expression in Python?, Type 'evaluate' first, Break it into pieces, Type after >>> prompt, Use a calculator, Which expression multiplies two numbers?, 4 + 7, 4 x 7, 4 # 7, 4 * 7, Evaluate: 3 * 4 * 2 + 8, 24, 32, 40, 120, Which statement about variables is correct?, Value never changes, Must be lowercase, Must start at zero, Can hold Booleans, What is the purpose of a variable?, Change future programs, Combine numbers, Remember values for later, Indent source code, Which statement initializes a variable?, Initialise(), x = 3, start(), finish(), If length = 200 and then length = 400 is run:, Error message, Error (can't change), Value becomes 400, Value becomes 600, In Python, the input() function:, Uses a USB key, Makes input faster, Returns a string, Must be called first, In Python, the print() function:, Changes data type, Displays a result, Is the last command, Must be called first, A data type with only two values is:, Integer, Float, String, Boolean.

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