Answer:
574
Step-by-step explanation:
1. C
2. 3, because I used a proportion table
The anwser is 4.4 because you add 9+15 then add 3+2 then divied them both and thats your anwser
5.6 is the correct answer because 1.3 +4.3 would be 5.6 so the next one in the sequence is 9.9
Answer: =(x - 1) x (x^2 + x + 1)