Answer:
X=7 or x= 2
Step-by-step explanation:

45-21 over 5-2 which would be 4 because it shows it
There could have been 31 people at the game. Or there could have been 13 million 642 thousand 837 of them. There are a lot of other possibilities too. Can you find some more without help ?
Answer: c
Step-by-step explanation: