#13 would be 100%.
#15 would be $9.90.
#17 would be 408.
#19 would be 27840.
#21 would be 26.
Sorry for the late reply.
Answer:
x = 31 degrees
Step-by-step explanation:
180 - 149 = 31
Hope this helps!
Answer:

<em>HOPE </em><em>IT </em><em>HELPS</em><em>! </em><em> </em><em>:</em><em>)</em>
Answer:
w = 3
Step-by-step explanation:
19w - 1 = 11w + 23
19w - 11w = 23 + 1
8w = 24
w = 3