Riley is nine years younger than Mark. Katie is 35. Brenda is two years younger than Katie and six years younger than Mark. How old is Mark?

39

Step-by-step explanation:

35 - 2 = 33 + 6

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

chiken

step-by-step explanation: