ABC~ DEF what sequence of transformation will move ABC onto DEF

What is the ratio for the surface areas of rectangle prisims shown below given that they are similar and that the ratio of their edge lengths is 7: 3

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

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .