The answer to your problem would be 400 because to find the answer you need to multiply 120 by .3 to get the answer because 3 % means per 100 and that is why you make it .3 hope i help.
The percent discount is 30%.
If you multiply $32 by .30, you will get $9.60. That is the amount of the discount. If you subtract $9.60 from $32, you will get $22.40 which is what he paid before tax. Therefore the percent discount is 30%.
210-147 so he has 63 more pages to read I just kept putting numbers in and multiplying by .7 till I got 147 from 210
Actually, the area of a triangle is a = bh/2. If a = 30 and b = 12:



So he height is 5 units