Ineed fast! btw i am terrible at volume

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.

What function has a range {yly< 5}? question on picture above^

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42