Answer:
y=8/(P+q+4)
Step-by-step explanation:
we can find out that three items have y
so we can get them together Py+qy+4y=8
next(P+q+4)y=8 so y=8/(p+q+4)
Supplementary angles = 180°
so to find the supplement of a 123° angle:
180 - 123 = 57°
hope this helps and have a great day :)
