Pls help due in 15 Min The following stops are used to rewrite the polynomial expression (x + 4y + 2)(x-7).

Step 1: x(x - 7y) + 4y(x - 7y) + 2(x - 7y)

Step 2: x? - 7xy + 4yx - 28y + xx - 7xy

Step 3: x? - 7xy + 4xy - 28y + x2 - 7yz

Step 4: x? - 3xy - 28y2 + xx - 7yz

Identify the property used in each of the steps:

Step 1:

What property used

Step 2:

What property used

Step 3:

What Property used

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?