Python

Python

Python

Which of the following are operators, and which are values?

'hello'

$-88\mathrm{.}8$

$1$

$+$

$5$

$2.$ Which of the following is a variable, and which is a string?

spam

'spam'

$3.$ Name three data types.

$4.$ What is an expression made up of$?$ What do all expressions do$?$

$5.$ What does the variable bacon contain after the following code runs?

bacon $=20$

bacon $+1$

$1$

$6.$ What should the following two expressions evaluate to$?$

'spam' $+$ 'spamspam'

'spam' $*3$

$7.$ Why is eggs a valid variable name while $100$ is invalid?

$8.$ What three functions can be used to get the integer, floating$-$point number, or string version of a value?

$10.$ Why does this expression cause an error? How can you fix it$?$

'I have eaten $\text{'}+99+\text{'}$ burritos.$\text{'}$

$11.$ Write a program that asks the user to enter a number, then displays the square of this number.

Enter a number:

$5$

The square of $5$ is $25$