The dimensions of a square are altered so that 8 inches is added to one side while 3 inches is subtracted from the other. the area of the resulting rectangle is 126 in^2. what was the original side length of the square

Find the total area for the regular pyramid ( follow the answer set up in the picture)

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer