Answer:
12(5y+4)
12(9y)
108y
hope it helps and I hope I did it right
Step-by-step explanation:
Answer:
(x+9)/2
Step-by-step explanation:
So.. checking the picture below
we can say y = y, or just do a substitution and end up with

once you know, how long is "x", then you can simply use the cosine of 72° to get "r"
thus