Respuesta :
Answer:
First question: a
Second: d
Third: b
Fourth: a
Fifth: a
Sixth: b
Step-by-step explanation:
Ask me if you need an explanation for any of the questions because there isn't much to explain for rounding.
Fifth: The reason that the answer is not b is because the 6 in that equation should have a - (if it was a typo, the answer should be b)