If 6 tomatoes are for $4, how much does 15 tomatoes cost?

Which expression gives the area of the triangle shown below

Why do interests rates on loans to be lower in a weak economy than in a strong one

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?