It’s rather b or d. I’m not sure where to go from there though, sorry :(
Answer:
(3,8)
Step-by-step explanation:
f(3)= 4 so y=f(3) +4 y =8 when x =3
If the number is x, then 3 times x -20 >10 and 3x-20>10. Adding 20 to both sides, we get 3x >30 and by dividing by 3 we get x >10
2 packets of 9 or 9 packets of 2
3 packets of 6 or 6 packets of 3
There might be more tbh
