I think it would be 14.2 and 8.8
Answer:
15.874507866388
Step-by-step explanation:
c.d. d=8-3=5
y=-1/5x-9/5
y=-5x-9
x=-5y-9
-5y=x+9
y=-1/5x+9/-5
15·0.8 + x = 30·0.9 --> x = 15
C. is the correct answer