Wind I think what are the choices?
Since there are 9 marbles and 2 are black, the number that are 'not black' is 7.
So the odds of picking a 'not black' marble is <u>7</u> , or D
9
The answer is 24.5
Remember to follow P.E.M.D.A.S
14+2+3(4)-(6.5-3)=
14+2+12-(3.5)=
28-(3.5)=
24.5
Hope it helps