Which of the following problem situations does not describe a rate of change of 20 miles per gallon? A. Darryl uses 12 gallons of gasoline to drive 240 miles.
B. Ramona drives 40 miles on 2 gallons of gasoline.
C. Shelley travels 375 miles on 15 gallons of gasoline.
D. Amber uses 1.2 gallons of gasoline to travel 24 miles.

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?