Answer:
11.0 cm
P=38 cm
38/3=12.67cm length of one side
Base of triangle = 12.67/2 =6.34 cm
Use formula 

x = altitude of triangle
That means that the graph of a function with direct variation has these features: It is a straight line: because the slope is the ratio y/x = k. It passes through the origin (0,0): because y = kx = k (0) = 0.
I use a app on my phone called (photòmath) and it helps so much.
Answer:
B= 70, C= 50
Step-by-step explanation:
120=15x+5+22x+4
120=37x+9
111=37x
X=3
C: 15×3+5=50
B: 22×3 +4= 70