menu = {
    'steak' : 150,
    'pita' : 1.5,
    'hamburger' : 59,
    'chips' : 17,
    'shakshuka' : 32,
    'cake' : 25
}

order = ['steak', 'steak', 'chips', 'cake']

total = 0
for item in order:
    price = menu[item]
    total += price
    
print(total)

sum([menu[item] for item in order ])

cost_increase = 1.15

{ name:round(price*cost_increase) for name,price in menu.items() }

{'steak': 172,
 'pita': 2,
 'hamburger': 68,
 'chips': 20,
 'shakshuka': 37,
 'cake': 29}

menu.items()

dict_items([('steak', 150), ('pita', 1.5), ('hamburger', 59), ('chips', 17), ('shakshuka', 32), ('cake', 25)])