Answer:
c
Step-by-step explanation:
Let
be the amount of the 30% alloy and
the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of

kilograms. For each kg of the 30% alloy used, 0.3 kg is copper; similary, each kg of the 60% alloy contributes 0.6 kg, so that

Now,






Answer:
the answer might be b. because if you multiply it by 4 it is 512.
Step-by-step explanation:
The answer is A that’s the answer
In case it is lost, it will not be able to be cashed except to be deposited into your account.