The best answer would be -1.2 because when you multiply a negative by a positive, you always get a negative. Hope this helped!
Answer: The pink fingernail are defined by the expression x-2 where x is the total number of fingers in both hand. For general case the number of nails with pink nail paint is 8.
Explanation:
Let the total number of fingers in both hands be x.
Since she paints 2 nails by red nail paint, therefore the number of remaining nails is x-2.
She paints pink nail paint on remaining nails, so the total number of pink nails is defined by the expression x-2.
In general case the total number of fingers in both hands is 10, therefore the number of nails with pink nail paint is 
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I am not sure exactly how to do it but based on my knowledge, I think the answer would be 1/38
Answer:
Initial costs 750 and loses .28 of value each year, so still worth 1-.28=.72 of value at start of next year. 750*(.72)^n is the value after n years since for n=0, new, it is 750*.72^0=750*1=750, and after 1 year it is worth 750*.72^1=750*.72 means it lost 28% value after one year. If you with to express it as an exponential exp(..) you need to convert the .72^n into exp(log(.72)*n)=exp(-.3285*n) so you get
750*exp(-.3285*n) as the value after n years.
