Explain to me step by step the following questions:
during christmas a bookstore sold 72 books. if the ratio of books to bookmarks sold was 9: 2, how many book marks did the store sell.

Step-by-step explanation: ok so they sold 9 book marks for every 2 books right?

so you would put 72 over nine like a fraction, then you would put 2 over X like another fraction.

Then cross multiply. 72*x=72x

9*2=18

72 divided by 18 = 40

I hope this helps

hdjd

step-by-step explanation:

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)