Convert 60 miles per hour into meters per second

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.

Which of the following is the shape of a cross section of the figure shown below

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x