A painter is hired to paint a mural on the side of a 18-foot-tall building. The painter wants to use the entire height of the building to paint a scale drawing of a skyscraper that is in the city. The skyscraper is 720 feet tall. What is the scale factor of the painting?

Step-by-step explanation:

they are asking, what multiple of 18 would equal 720

so divide 720 / 18 = 40

so the drawing on the building will be  1/40 th scale

that is,  it will be one fortieth,  of the real one.  :)  

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.  

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.