How to do price combination

[MrCode]

Hi,
Can I do this combination without additional modules? if yes, tell me how
for example, I want to set price like this: price = 20€ + n*0.1€
n - quantity
how to do it?
and how to do something like that: default price - 20€, I want to add additional features to item, every add 5€, how to do it?

Default price - 20€

Option1 - 5€+

Option 2 - 3€+

Option 3 - 10€+

Total: 38€