The four corners of a rectangle city block are located at (-5, -2), (-5, 9), (9, 9), and (9, -2) on the coordinate grid. Randy walks all the way around the block and stops when he gets back to where he started. Each unit on the grid represents 10. How many metered does randy walk.

the f

last graph i believe

step-by-step explanation:

worked it out i believe

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15