-1.6α + 2a^4 + 8.1a^3 In standard form

My options are
2a^4 + 8.1a + 1.6a

2a^4 - 1.6a + 8.1a^3

8.1a^3 + 2a^4 + 1.6a

Any help is appreciated greatly :)

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6

answer: what is the conflict?

step-by-step explanation:

*what has happened to new york city?

*what is in the time capsule?

* what did the kidz see that gave them hope?

*what will they do with what they find?

* how will they save the city?

* what challenges will they face along the way?

*what big choice will they make at the climax of the story?

* what lesson do they learn at the end of the story?

they charge the same amount at 20 minutes.

step-by-step explanation: