Note:

For this lab, first we need to define $3$ functions: roomCost, mealCost, and excursionCost, then we call these $3$ functions separately to calculate cost for room, meal, and excursion, finally Totalcost is calculated.

Here are some sample code:

# Define mealcost function

def mealcost$($brunch$,$ dinner$)$:

sub $=$ brunch $**25+$ dinner $**75$

grat $=$ sub $**0\mathrm{.}15$

return sub $+$ grat

# Call mealCost function

brunch$\_$count $=$ int$($input$("$How many Brunches: $")).$

dinner$\_$count $=$ int$($input$("$How many Dinners: $"))$

$mc=$ mealCost brunch$\_$count, dinner$\_$count$)$