Person 1 can do a certain job in twenty-one minutes, and person 2 can do the same job in twenty-eight minutes. When
completing the job together, which expression would be used to represent the amount of work done by person 1?

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

idk

step-by-step explanation:

payback