Activity 4: Solve the following problems 1, Connecting to the Real World! A. The area of billboard posted in EDSA is represented by the expression14x¹ - 84x, where x is in inches. What is the if x = 4 dimension of the billboard? Determine the area of the billboard, B. You are a painter tasked to paint the wall of a classroom. The total area of the wall is expressed as 18w+240w You need to determine the dimensions of the wall to calculate how much paint you will need. What are the dimensions of the wall?​