You and your friends are cycling around australia. you and four of your friends plan to stay at a bed and breakfast for two nights. the total cost of your stay is $186. you each need to pay 1 5 of the cost. your friend says this is the same as 25% of the cost. is your friend correct? yes or no on top of your $186 bill for the bed and breakfast, you need to pay an extra 10% service charge. how much will the service charge be?