B. And D. As they wanted new freedom and a nee change!! They had long winters and short summers!
Answer:
This test uses formaldehyde and sulfuric acid. The solution will turn purple when introduced to heroin, morphine, or other opium drugs.
Explanation:
Answer: 45kg
Explanation:
Since 25% of the ingot consists of zinc, it implies that (100 - 25) = 75% of copper is contained in the ingot.
We then calculate 75% of 60kg to get the amount of kilograms of copper that the ingot of brass contain. This will be:
= 75% × 60
= 75/100 × 60
= 0.75 × 60
= 45kg
Answer: no it can’t be changed
Explanation: