Answer:
Step-by-step explanation:
where is exercise 4-9?
or at least give us the equation
Answer: y=11.
Step-by-step explanation:


1/5+ (-4) is the same as 1/5 - 4
1/5-20/5
-19/5
Answer:
x = 20, <S = 47 degrees, <P = 131 degrees
Step-by-step explanation:
27 + x + 119 + 63 + 3x + 71 = 360
4x + 280 = 360
4x = 80
x = 20
<S = 27 + x = 27 + 20 = 47 degrees
<P = 3x + 71 = 3(20) + 71 = 131 degrees