Answer



Hope this helps you.
Let me know if you have any other questions :-):-)
1. x=4, y=0
3. x=2.6666, y=0.3333
To subtract 7 from 102, you have to regroup. You subtract 2 from 100, and 2 from 7, so it is 100-5. 100-5 is 95. The answer is 95. If you don't understand, tell me in the comments. This is just one method of subtracting.
I think its C but I'm not 100% sure
Answer:
raoul is 16 and estaban is 22