If k(x) = 2x-3x then k(9) is. a.315 b.307 c.159 or d.153 show work plzz

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Choose the correct translation for the following statement. it is at most ten. x< 10 x< 10 x> 10 x> 10

Graph the function =gx+2x3 and give its domain and range using interval notation.