Answer:
53.5
Step-by-step explanation:
155 degrees
Every 4 angled shape will equal 360
45+130+30+x=360
205+x=360
155=360
5. Slope: 2
y-intercept:(0,-6)
y=2x-6
6. Slope:1
y-intercept:(0,-1)
y=x-1
5 feet
Using pythagoras' theorem a^2 = b^2 + c^2
13^2 = 12^2 + c^2
c^2 = 25
c = 5 feet
