Perimeter of a triangle =sum of all sides
=2x-7+5x-3+2x-2
=2x+5x+2x-7-3-2
=9x-12
With 9 tokens in 3 displays she will have 3 tokens per display. 3 is a prime number.
You must do 6 to the second power then plug in 3 for M which gives you 36/2(3), multiply 2 times 3 to get 6 then divide. Your answer is 6.
$28.3 each I know this because you subtract 35 from 130 and you get 85. Then you do 85 divided by 3 and get 28.3