hm: multiply by 105 dam: multiply by 104
210
21 and 5. 21 x 5 = 105. Simple math.
22
The factor pairs of 105 are: 1 x 105 3 x 35 5 x 21 7 x 15
52.5 x 2 = 105
They are: 3*5*7 = 105
Just multiply 105 by different integers, to get the multiples: 105 x 0 105 x 1 105 x 2 etc.
210
hm: multiply by 105 dam: multiply by 104
21*5 is the answer
The LCM is 420
35x3, 21x5 or 15x7
210
3 x 5 x 7 = 105
315
75% of 140 is 105. You can prove this easily, divide 105 by 75 to find 1% (1.4) then simply multiply by 100.