Answer:
20.28
Please look at the drawing
$210 is what she has in her bank account after 5 weeks.
18*5 =90
300-90= 210
40 percent off because if there is 100 percent minus 40 that's 60 percent then if our work out the other one as 100 minus 30 equals 70. 70 the sale price divided by 10 because that's how much you get off equals 7. 30 plus 7 equals 37 which means you would only get 37 percent off.
