The sum of a number and three is less than twelve
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i dont know

Step-by-step explanation:

sorry my love..

The equation is    x+3<12  

The answer is       x<9

Step-by-step explanation:

(The sum of a number = x) (and = +) (three is less than twelve = 3<12)

This means the equation is x+3<12, so then you subtract 3 from both sides and end up with x<9

Hope this helps :)

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 : )