The expression 8x + 2(3y) represents the total amount, in dollars, that davellyn spent on tank tops and scarves, where x represents the number of tank tops she bought and y represents the number of scarves she bought. which statement must be true about the amount davellyn spent?

she spent 8x dollars on scarves.
she spent 8 dollars for each scarf.
she spent 6y dollars on scarves.
she spent a total of 14 dollars.