Mary making a solution for a science class experiment. The solution must be 20% water. If there will be 10 ounces of water, what is the total amount of solution needed for the experiment?

The product of 3 and a number increased by 8 is 31

27/9=18/x a. x=9 b. x=18 c. x=6 d.x=3

Which answer choice listed below is thewhich answer choice listed below is the inverse function of ƒ(x) = x-3 x+3 , x ≠ -3? a) ƒ-1(x) = 3 ( x+1 x-1 ), x ≠ 1 b) ƒ-1(x) = -3 ( x+1 x-1 ), x ≠ 1 c) ƒ-1(x) = 3 ( x-1 x+1 ), x ≠ -1 d) ƒ-1(x) = -3 ( x-1 x+1 ), x ≠ -1inverse function of ƒ(x) = x-3 x+3 , x ≠ -3?