What is 2.7 kg in g. i need a simple answer

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)