Q$1$: In the code, we are calling two functions, greet$()$ and say$\_$goodbye$().$

$-$ The greet$()$ function is already defined but it has a bug. It should print "Hello, World!".

$-$ The say$\_$goodbye$()$ function is not defined. Define it so that it prints "Goodbye, World!".

def greet$()$:

print$("$Hello$,$ World!"$)$

# don't modify below this line

greet$()$

say$\_$goodbye$()$

Q$2$: There is a bug in the code below. Can you fix it so that the output is:

$```$

$10$

$20$

$```$

print$\_$number$(10)$

print$\_$number$(20)$

def print$\_$number$($k$)$:

print$($k$)$

Q$3$: n the code, define a function called farewell, which takes a single parameter. The function should print "Goodbye, $"$ followed by the parameter. Then use this function so that the output is:

$```$

Goodbye, Bob

Goodbye, Charlie

Goodbye, Lisa

$```$

# don't modify below this line

farewell$("$Lisa$")$

Q$4$: In the code, define two functions, two$\_$sum, and three$\_$sum. The two$\_$sum function should take two parameters and print their sum. The three$\_$sum function should take three parameters and print their sum.

Finally, call two$\_$sum with the arguments $7,10$ and after that call three$\_$sum with the arguments $3,5,8.$

# do not modify below this line

two$\_$sum$(10,9)$

three$\_$sum$(5,14,6)$

Q$5$: In the code create a function named product that accepts two parameters and returns their product.

# don't modify below this line

print$($product$(2,4))$

print$($product$(8,2))$

print$($product$(4,8))$

print$($product$(8,8))$

Q$6$: In the code, call the function greet with the argument "Lisa". Then print the type of the return value of the function.

Hint: You can get the type of a value with the type$()$ function.

def greet$($name$)$ :

print$("$Hello$,"+$ name$)$

Q$7$: To prove that the variable k inside the function is different than the one outside, consider this code:

$```$

def add$\_$one$($k$)$:

k $=$ k $+1$

print$($k$)$

k $=10$

add$\_$one$($k$)$ # Output: $11$

print$($k$)$ # Output: $?$

$```$

What do you think the output of the last print statement will be$?$ Will it be $10$ or $11?$ Run the code to find out.

Q$8$: There's a bug in the code below, if you try to run it you'll see a NameError. Can you fix it so that the output is:

$```$

$100$

$100$

$```$

k $=100$

def print$\_$local$\_$variable$($num$)$ :

print$($num$)$

print$\_$local$\_$variable$($k$)$

print$($num$)$

Q$9$: In the code below, update the function greet$()$ so that the second parameter has a default value of $"!".$

def greet$($name$,$ punctuation$)$ :

print$("$Hello$,"+$ name $+$ punctuation$)$

greet$("$World$","!")$

greet$("$World$")$