Basic insurance is included in the rate, but you can buy extra if you wish at the desk on arrival
how can i find out the rate?
it may say under TERMS & CONDITIONS, a link next to the car photo
last question, what do i do about tolls?
Tolls are not included in the rental car fee. The supplier may be able to provide you with a gadget to avoid stopping at the tolls, but they will charge you a fee on top the amount in concept of using the gadget.
I suggest you use a debit/credit card or even cash at the tolls.