Answer:
40%
Step-by-step explanation:
i believe because 10 from 2001 and bc of 2003 10 added by 30 is 40 percent sorry if wrong
time after 40 meters to 80 meters=12-7=5 s
distance=80-40=40 m
max. speed=40/5=8 m/s
D (x-10)
x^2 - 8x - 20
(x -10)(x+2)
y=12/2
y=6
x=12/3
x=4
y= x-9
Y=4-9
y=5
6=5
6/5
1.2
