Answer:
x=3 y=4
Step-by-step explanation:
5(4)=20
4(3)= 12
20-12=8
4+3=7
It can be anyways..400 minutes after 30 or 30 minutes after 400
100% 9/12 the answer is 25% which leaves you with 75%
Well I would say A because it went from 8 to 38 which is plus ten.
Answer:

Step-by-step explanation:
