-4r + 3 - 11 = 8 + 4r

please right examples and everything : )

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.

Select the term that describes the linear portion in this quadratic equation 7x^2-12x+16=0 a) -12x b) 7x^2 c) 16