Answer: 
Step-by-step explanation:
Given
There is
of ham available which costs
cost
i.e.

and we know

So, 
thus 
Need more information on the choice, please provide
Answer:
Step-by-step explanation:
the first one is correct
Answer:
Your answer will be D. He knows that 30 × 16 is 5 then multiples 5 by 5 to get 25.
Answer:
i cant view it
Step-by-step explanation: