If x and y vary directly, and x = 12 when y = 3, what will be the value of x when y = 9?

36

Step-by-step explanation:

When a variable increases directly with another variable, it means that when one gets increased, the other must be increased by the same amount, therefore if X=12 when Y =3 then Y=3*3 aka 9 then X=12 must also be multiplied by 3 which equals 36

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.

30,40,50 is correct answer