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Create a Simple Lambda Function: Write a lambda function that takes a single argument $x$ and returns the square of $x.$ Demonstrate its use by passing a number and printing the result.$[2$ marks$]$

Lambda with Multiple Arguments: Define a lambda function that takes two arguments, a and $b,$ and returns their product. Use the function to calculate the product of two numbers and print the result.$[2$ barks$]$

Combining Lambda with filter$()$ : Given the list of ages, use a lambda function with the filter$()$ function to create a list of all ages that are $18$ or above $($legal adulthood$).$ Print the filtered list.

ages $=[14,18,21,16,30,45,17,22,61]$

$[4$marks$]$

$4.$ Using Lambda with $)$ : You have a list of prices in dollars. Use a lambda function with map$()$ to apply a $10\%$ discount to each price. Print the list of discounted prices.

prices $=[19\mathrm{.}99,35\mathrm{.}50,89\mathrm{.}99,43\mathrm{.}75]$