There is a 1x14 unit grid, and there are 1 unit blocks and 2 unit blocks. How many different ways are there to cover the grid with the 1 unit blocks, 2 unit blocks, and/or a mixture of both?

i think it would be 42cm

well kind of. you get friend requests. and you can accept them or not so yes.

step-by-step explanation:

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6