If f(x)=4x^3+3x^2−5x+20 and g(x)=9x^3−4x^2+10x−55, what is (g−f)(x)?
−5x^3+7x^2−15x+75
5x^3+x^2+5x+35
5x^3−7x^2+15x−75
13x^3−x^2+5x−35

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Solving algebraic equations 2m+3=11