15 and -4
21
101
The whole number that you can multiply by to get 15 is 15.
To increase a number by a certain percent, multiply it by (1 + n/100). For example, to increase a number by 15 percent, multiply it by (1 + 15/100), or 1.15. To decrease a number by 15 percent, multiply it by (1 - 15/100), or 0.85.
545
-435
take your total and multiply it by 1.15
-71
15 and -4
Multiply original number by .15, this will give you the answer.
21
101
I hope you would multiply 15 by 4 if you want to get 60 to give to me.
13
The whole number that you can multiply by to get 15 is 15.
E.g 1 5/10 is equal to 15/10 . Multiply the whole number by the denominator and add the numerator to get 15/10