Kind of difficult to see that
According to the statement lines, r and s are parallel, then when a line intercepts both lines the angles formed are going to be the same.
Then x is at the same position as 156°.

Step-by-step explanation:
<h2>yoo i forgot it im sorry please send a picture</h2>
~169%
THIS IS NOT AN EXACT ANSWER
I took 490/290 and got 1.689655172, multiplied that by 290 and got 489.999 repeating, so I rounded up to 1.69 which translates to 169 percent.
I hope this helps :)