The correct option is D.
The initial value of the stock is $575 and it doubles every 8 years, this means that, in the next eight year the value of the stock will be 2 * 575 = $1150.
This amount too will double in the next eight year and the value will become 2* 1150 = $2,300.
Therefore, in 16 years time the share will be worth $2,300.00.
Since there are two negative signs in front of the 17 it becomes a positive and then since there are two after that becomes plus so 17+17.9 and u get 34.9
A chemical a element js a specific kind of atom
$6.50 I guess, because I added $5 and $1.50 and got $6.50