Answer:
k = 0.5
Step-by-step explanation:
Substitue y = 12, x = 24 into y = kx.
12 = k × 24
24k = 12
k = 12 ÷ 24
k = 0.5 (final answer)
<span>f x=0 ==>x^4+400=0+400=400</span>
I think C but probably try to find something to back it up
All you gotta do is divide the pound by the cost