What is the slope of the line that passes through the points (1,7),
(10, 1)?
3/2
2/3
-3/2
-2/3

The slope of a line is the change in y divided by the change in x.

( y1 - y2 ) / ( x1 - x2 )

It does not matter which point you choose as (x1, y1) and (x2,y2)

( 7 - 1 ) / ( 1 - 10 )

( 6 ) / ( -9 ) This will simplify to -2/3.

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

you can use a^2+ b^2=c^2