Answer:
7x^2-x-14
Step-by-step explanation:

recall that the axis of symmetry for a vertical parabola is simply the equation for the vertical line of the vertex's x-coordinate.
4x+8y=40
0.8*8=6.4
4x+6.4=40
40-6.4=33.6
4x=33.6
33.6\4=8.4
X=8.4
It is 20 because 20/200=10/100=1/10
Answer is: Bella saves more per chore than Sweet T.
Bella began with 11 dollars and Sweet began with 10 dollars. Bella also earns 1.5 dollars more compared to Sweet T. This means that overall, Bella earns more and has more money compared to Sweet T.