Which sequence of transformations proves that shape 1 is similar to shape 2

Which expression is equivalent to the expression shown?

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.