Classify each number as rational or irrational and explain.
125
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7,548,123

Rational

125

7,548,123

Irrational

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Any number (or part of a number) that contains a square root is irrational because NO square root can be expressed as a fraction.  (Or a "ratio", hence the term "irRATIOnal" - meaning no ratio or no fraction)

Step-by-step explanation:

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )