To discourage excess use of water, the Doe's water company charges each housebold a monthly surcharge of $0.01 per gallon for every gallon over 4,000 used in a month. What was the total of the surcharges for the Doe houschold last year?​

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Identify the number as a rational or irrational. explain. 127

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