15 is the answer because 5 is a prime factor so 5 into 105=21 and 3 is another prime factor so 3 into 21=7 and 7 is another so 7 into 7=1 and 5+3+7=15
Here is an attachment with the answer. I hope this helps.
D=10
Explanations: 2d-5=3d- 15
2d- 3d =-15+5
D=10
Well according to many studies the ans is 17ft it is very long according to associates when you add
We divide the value by 1000 and multiply bit by the mills.
112000 / 1000 = 112 * 25 = 2800