Answer:
2x+17
Step-by-step explanation:
-4y+8-3x+4y+9+5x
Combine like terms
-3x +5x -4y +4y +8+9
2x +0 +17
-4y+8-3x+4y+9+5x=
-4y+4y-3x+5x+8+9
X= -12 Y=10
.85
Compound interest formula
Melanie:
Sebastian:
4824.06-4283.21= .85