The table and graph both represent the same relationship. which equation also represents that relationship?

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

On a piece of paper graph f(x)=5•(0.4)^x

Which expression is rational? 6. , square root two, square root 14, square root 49