None, since there can be no conversion.
A linear (or lineal) foot is a measure of length in 1-dimensional space. A square metre is a measure of area in 2-dimensional space. The two measure different things and, according to basic principles of dimensional analysis, any attempt at conversion from one to the other is fundamentally flawed.
Lineal metres = Square metre/Width of the carpet.
That is like asking how many yards in a gallon. There are no square meters in a meter, and no meters in a square meter.
You cannot convert meters to square meters. A meter measures length or distance. A square meter measures area.
156 meters squared = 24,336 meters.
Does not compute a meter is a length, a square meter is an area.
As a linear meter is a length with zero width, even with an infinite number of them they will not cover an area of 30 square meters.
The answer will depend on the width of the decking boards.
Lineal metres = Square metres/Width of the boards.
There is no rational answer because you are talking about two completely different things. A meter is a lineal distance measurement. A square meter is an area measurement. If I am driving to the store, I will measure my distance with a lineal measurement, as an example there are 4,358 meters from my house to the store, but there are not (technically) 4,358 square meters unless you drew the line from my house to the store 1 meter wide. 1 square meter has a lineal distance measurement "around" the square of 4 meters. Pick a corner and pretend the square is a fenced in yard. In order to start in one corner and walk all the way around the fence, you will have to walk 4 meters, so you may be able to say that 1 square meter has a "perimeter" of 4 meters.
Lineal metres = Square metre/Width of the carpet.
Exactly one. They are the same thing!
To determine the square meters in 750 lineal meters, we need the width of the area. If you provide the width in meters, we can calculate the square meters by multiplying the width by the length (750 meters).
The units cannot be exchanged or converted
Quite simply, you don't convert from square meters to linear meters. Those units are not compatible.
Lineal metres = Square metres/Width of the boards.
One square meter is equivalent to approximately 10.764 square feet.
A linear metre is a unit of length. A square metre is a unit of area. The two units are therefore incompatible.