Help me on this and ill mark you brainliest

Y = x - 3

Step-by-step explanation:

y = x - 3

if x = 0 , y = -3

if x = 3 , y = 0

if x = 5 , y = 2

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!