The number is -6.67
<em><u>Solution:</u></em>
Let "n" be the number
From given,


Given that,
Five less than 1/5 times a number is the same as the sum of the number and 1/3
Therefore, we get,

Thus the number is -6.67
4 outcomes,
Heads - Heads
Heads - Tails
Tails - Tails
Tails - Heads
With every coin added the amount of outcomes is multiplied by two
-3 is the answer 5 times -3 + 22