Sara has been in soccer twice as many years as Karrie. Together they have been in soccer a total of 9 years. How long has Karrie been in soccer? I need this in a linear equation

Part of the total score for each program is the sum of five program component scores. on the free program, the sum of these five program component scores is multiplied by a factor of 2.0. yuzuru hanyu, of japan, earned scores of 9.07, 8.96, 8.89, 9.21, and 9.36 for the program components portion of his free program. how many total points did he receive for this portion?

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?

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3