For each 9 mm of coloured fabric sarah uses to make her curtains, she also uses 2 cm of white fabric. express the amount of white fabric to coloured fabric as a ratio in its simplest form.

The ratio of the white fabric to the colored fabric is in its simplest form

Step-by-step explanation:

The ratio indicates how many times one number contains another

The ratio can be written as:

The two terms of the ratio must have the same units

∵ Sarah uses 9 mm of colored fabric to make her curtains

∵ She also uses 2 cm of of white fabric

- To express the amount of white fabric to colored fabric as a ratio

   you must change the centimeter to millimeter because the

   terms of ratio must have the same unit

∵ 1 centimeter = 10 millimeters

∴ 2 centimeters = 2 × 10 = 20 millimeters

∴ She uses 20 millimeters of the white fabric

Now write the ratio between the white fabric and the colored fabric

→  White    :    colored

→  20          :    9

∵ 20 and 9 do not have a common factor

∴ The simplest form of the ratio is 20 : 9

The ratio of the white fabric to the colored fabric is in its simplest form

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

i have no idea just need points sorry

step-by-step explanation: