The formula to find how many different ways are there to choose a subgroup of r things from a group of n things is

Here, you have 7 trophies and you want to choose 4 of them, so you have

So there are 840 ways to choose your 4 trophies out of the 7 you have.
Im pretty sure is teh 3rd one
Answer:
1.25
Step-by-step explanation:
because if u work it out on a paper u will multiplie it together and u will get 1.25
Answer:
C
Step-by-step explanation:trust me