multiply $2500 by the percentage (ie. 24%) that is how to get the amount.
30.
if 4 boxes equal $5.00 and Jeniffer has 6 then 4 of her 6 equal 5.00 and half of five is 2.50 which mean the 2 remaining would be added and would equal $7.50
31.
you add 1 dot to the top of the number for every time that one number shows up (example: if you have 3 2's, then you add 3 dots to the top of the number 2)