180% = $270
60% = $90
10% = $15
100% = $150
Original price = $150
The answer is No.
The reason being is that in

, if you divide 2 by 5, it is .4
Which is less than .5

<.5
That would be $19.
let me know if you have any further questions
:)
Assuming you are focusing on the square only, then the answer is 9 inches.
You take the square root of 81 to get 9. Notice how 9^2 = 9*9 = 81. So if you're not familiar with square roots, then think backwards in a sense to get the answer.