List 3 values that would make this inequality true. 7n< 21

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)