Can someone please help me?

So the right answer is 29.
Look at the attached picture
Hope it will help you....
Good luck on your assignment
~pragya
Answer:
x = 29
Step-by-step explanation:
As per image:
Sum of all the angles = 90 degree
[tex](x+3)\degree+(x-1)\degree+(x+1)\degree= 90\degree\\(3x+3)\degree= 90\degree\\3x+3= 90\\3x= 90-3\\3x= 87\\x=\frac{87}{3} \\x=29[/tex]