Answer:
-4r
Step-by-step explanation:
r + (-5r)
1r + (-5r)
Factor out an r
r( 1 -5)
One minus 5 is negative 4. If you have one dollar and you borrow five dollars, how much did you borrow? 4 but that 4 is borrowed so it is negative
r (-4)
-4r
If the polygons are similar then the sides are in proportion.

Therefore we have the equations:


The mean to your problem is 87.5
The slope is 2. slope is change in the y values divided by change in x values