Kepler was a student of Copernicus who went with observations he made instead of tradition.
The picture you attached is too fuzzy to read.
But in general, two figures are similar if each angle in one of them
is equal to the corresponding angle in the other one.
Answer:
5(x-1)
Step-by-step explanation:
Answer:
Yes there is, and it is 4.99.
Step-by-step explanation:
The constant of proportionality (let's call it 
) will relate the number of books bought 
and their cost 
in the following way:
For the 12 books:
And for the 21 books:
The for the two purchases is the same, thus there is a constant of proportionality between the two purchases.
P.S: is the price per book.
