area square: 9in×9in = 81in
area triangle: [9in×(13in-9in)]/2
= (9in×4in)/2
=36in/2
=18in
green area: 81in+ 18in= 99in
1st one: only mentions 1 p wrong
2nd one: saving means (-) cost so this is also wrong
3rd one: how much you owe is x-y and there is no (-) sign in there so it is wrong
the answer is the 4th one because it has p+14%p if p=price and 14%p=14% of p tax
3x^3=0
the only possible answer is x=0
factor
3(x^3)=0
x^3=0
x=0
C