What type of sentence is this? If they place first, they might win five hundred dollars.

a
simple
b
compound
c
complex
d
compound-complex

remember, the goal of an adjective clause is to add more information to a noun or a pronoun. as you can see from the examples above, you can add information by including a longer adjective clause or tighten up a sentence by turning the adjective clause into an adjective phrase.

dependent clause!

example: "before the food gets cold"

i don't see it in your profile.