The $72.99 backpack is a better choice to buy because
The $84.99 backpack for 1/3 off is approximately $28.3299 (about $28.33)
And the $72.99 backpack for 25% off is $18.2475 (about $18.25)
So since $18.25 < $28.33, the $72.99 backpack has a cheaper price.
<span>the answer is 369.228</span>
Both 25x and 22x + 9 have the same answers. So you set those two equal to each other.

Subtract 22x from both sides.

and you're left with this.
Next, divide 3 from both sides.

re-insert 3 into one of the equations.

add up both angles

all angles (for quadrilaterals)added up equals 360.

solve for x. Subtract 150 from both sides.

and divide 2 from both sides

AngleLMN= 105