Question

HELP PLS I'm working on this now and it's Khan academy

Answer 1

X = 5

Explanation:
5•8 = 40
40 + 50 = 90
The angle has a value of 90* so we know that if 1 side is 50* then the other (8x) is 40*
8x = 40* then you divide both values by 8 to get x = 5
Hope this helps!