Answer:
Proportion
16/4 = x/6
24 books
Step-by-step explanation:
16/4 = 4/1
4/1= x/6
cross multiply
4*6=1*x
4*6 = 24
1*x= X
24=X
b
33/20 as well as 1 and 13/20. First you look it up in the internet aka Google.
RO = 39.5
RO/9 = 57/13
13RO = 513
RO = 513/13
RO = 39.46
