Y = mx + b
y - b = mx
(y - b) / x = m
so its : m = (y - b) / x.....or m = (y/x) - (b/x)
This is the whole problem : Paul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shirt did he buy?
Answer:
Nate wants to use a .org (or .gov) site about ecological roofs, a book featuring photos of different styles of room because
1. It specifically talks about green roof's
2. Unlike the blog post, the .org/.gov is not attempting to sell a product that may change how the article is written.