Answer:
D
Explanation:
The subject is plural, and I don't know how to explain this correctly, but I think that's the answer because it makes the verb singular.
Answer:
Art conservators have to know chemistry so that they know how to best protect the art and how to not ruin it. Art conservators have to know art history for the same reason. the music of the classical period was often written to be more accessible and enjoyable for all people, rather than just the wealthy.
Explanation:
Answer is B apexxx i did it
Answer:
The amount of blue is always the last two digits in the hex code- in this case, c9!