A 19 gram sample of substance that's used to treat
1 answer:
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Answer:
A.
Step-by-step explanation:
For this problem, we have to combine like terms.
Let's look at the equation:
,
,
do not have any other like terms, so we keep all in the final answer.
and
are like terms, so we combine them.
14 and 6 are like terms, so we combine them. 14+6 = 20
Let's put everything into the final equation:
So, the final answer is A.
Hope this helps! If you have any questions about my work, leave them in the comments below!