Vicki puts 10 books on a shelf. the 10 books take up 28 cm. what is the mean average thickness of her books?
show your working

step-by-step explanation:

i need to answer questions so i dont know but i think its the first one because it goes up but a consent rate

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.