Y-3.6=x^2
y=x^2+3.6
x=1, y=4.6
x=3,y=9.6
x=5,y=28.6
x=6,y=39.6
x=9,y=84.6
2/3
Step-by-step explanation:
10a + 10b = 30
9x - 9y = 45
(10a+10b)/(9x-9y)
=30/45
=6/9
=2/3
The sum is 12x3+18x2-10x+8
The work is the difference between the final and initial kinetic energy:

Substitute your values to get

Answer: 20
Step-by-step explanation: see screenshot