How many 30x30 floor tiles is a square meter

How many 30x30 floor tiles is a square meter

Should be said: 300 * 300, the building is in millimeters
The theoretical value of 300 floor tiles per square meter is 11.11 pieces. Small area engineering quantity can be calculated by 11 pieces

（1） How many square meters do you need for each tile? (expressed in fractions) (2) put a 4 square meter circle
（1） Four floor tiles are needed to pave one square meter of floor. How many square meters are each tile paved? (expressed in fractions)
（2） Divide a 4 square meter round flower bed into 5 pieces of the same size. How many square meters is each piece? (expressed in fractions)
（3） 19 square centimeter = fraction of square decimeter 49 ml = fraction of liter 75 g = fraction of several thousand gram 111 cubic decimeter = fraction of cubic meter 33 cm = fraction of meter

1.1/4
2 .4/5
3.19/100
49/1000
3/40
111/1000
33/100

What is the value of m if the bracket m-2 times the square of M minus 3 equals 4 is a linear equation of one variable about x
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M ^ 2-3 = 1, M = 2 or M = - 2
m-2≠0 m≠2
So if the bracket m-2 times the m square of x minus 3 equals 4 is a one variable linear equation about X, then the value of M is - 2