A box contains 7 black pencils and 28 blue onew what is the ratio between the black and blue pens

The ratio between the black and blue pens   or 0.25 or 1:4.

Given to us,

Number of black pens box contains = 7,

Number of blue pens box contains = 28,

Putting in the values we get,

The ratio between the black and blue pens  ,

Hence, the ratio between the black and blue pens   or 0.25 or 1:4.

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1 : 4

Step-by-step explanation:

7 black : 28 blue = 7/28 ---> reduces to 1/4 ---> 1 : 4

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.