The rule is that :
B. The product of the means is equal to the product of the extremes
Answer:
rise, run
Step-by-step explanation:
When finding the slope of a line using a slope triangle, the RISE length is divided by the RUN length. (I think. Sometimes the "divided by" makes me confused about which is on top, but I'm pretty sure this is right.)
Answer: 
Step-by-step explanation:
Given
A delivery service charge 
for each delivery
and an additional 
for each mile traveled
Suppose, x miles are covered
The charge is given by
Therefore, driver traveled 6 miles for delivery
One way to solve this is to look at the size of the poster, and then subtract the size of the picture so you have the area that needs to be painted left.
Area of square poster - 3x × 3x = 9x^2
Area of painting - 2x × 2x = 4x^2
9x^2 - 4x^2 = 5x^2
The area is 5x^2
