Can anyone tell me what to do on B?

Graph...

Step-by-step explanation:

Start at 6 (and plot a point) on the y axis because:

y= 6 - 2x

y = 6

(0,6)

Then since y = -2x you go down on the line two spaces then move right one landing on the coordinate of (4,1) which you also plot your point on which repeats also landing on the coordinates (2,2) then (0,3) then (-2, 4) and then finally (5, -4). (Keep in mind to put a dot on all these points)

not sure but it may be b, as i said i'm not sure.

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.