Find the value of x
not sure how to do this please help!!​

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

The square root of 9x plus 7 plus the square rot of 2x equall to 7

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters