The question is in the attached image.

Side angle Side. The two triangles share the angle Home and they share sides Home-High School and Home-Friend's House. Since the angle Home is shared, sides Elementary-Middle and Friend's-High School are proportional.

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s