$1)$ Write a function called cm$\_$to$\_$in$()$ that converts a given number of centimeter to inches.

The result should be rounded to the nearest tenth and returned from the function.

NOTE: $1$ inch $=2\mathrm{.}54$ centimenters

cm$\_$to$\_$in$(25\mathrm{.}4)10\mathrm{.}0$

$2)$ Write a function called rect$\_$perimeter$()$ that returns the perimeter of a rectangle, given

the length and width of a rectangle.

rect$\_$perimeter$(4,6)20$

$3)$ Write a function called avg$\_$six$()$ which finds the average $($mean$)$ of six values given as

parameters. The function should return the average rounded to the nearest tenth.

avg$\_$six$(10,10,10,30,30,30)20\mathrm{.}0$

$4)$ Write a function called reliant$\_$num$()$ that requires two parameters, x and y$.$ and returns a

new value calculated by xy $$ y$.$

For Example: $733=3433=340$

reliant$\_$num$(7,3)340$

$5)$ Write a function called speaker$\_$price$()$ that calculates and returns the price of a

bluetooth speaker after some discount and then some tax rate. This function requires three

parameters: price, discount percent, and tax rate. NOTE: Calculate the discounted price before

calculating and adding the tax.

speaker$\_$price$(100\mathrm{.}00,11,7)95\mathrm{.}23$

$6)$ Write a function called cups$\_$to$\_$sleeves$()$ that calculates how many sleeves of cups Kenia

needs if she can only bring full sleeves. Each sleeve contains $50$ paper cups.

HINT: Kenia will likely have extra cups, but should not have more than $49$ extra cups!

HINT: You can use math.ceil$()($or another approach$)$ to get the result.

cups$\_$to$\_$sleeves$(165)4$

$7)$ Write a function called determinant$()$ that returns a determinant of a quadratic function,

given the values of a$,$ b$,$ and c as parameters.

NOTE: determinant $($the part under the radical$)$: b$2-4$ac

determinant$(4,7,3)1$