write each set in roster form and in set builder notation:

N is the set of even numbers that are less than 2.5

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3x+7<10 or 6x-15>3

To write the set of even numbers that are less than 2.5 in roster form, we need to list out the elements of the set.

In this case, N would consist of the elements 0 and 2, as these are the only even numbers less than 2.5.

Roster form: N = {0, 2}

To write the set in set builder notation, we need to specify the properties that the elements of the set must satisfy.

Set builder notation: N = {x | x is an even number and x < 2.5}