Answer:
the third one has a 2 acute angles 2 abuse angles and the x value is 110
Step-by-step explanation
the x value has to be bigger then 90 degree angles because it is a abuts angle and the 57 angle is a acute angle
Answer: Equation: 4
-2
; estimate: a
little more than 2 inches; answer: 2 
inches.
Step-by-step explanation:
First we need slope


Put D co-ordinates on y=mx+b




Now
slope intercept form.

72/8 +3*4 - 105 /5
= 9 + 12 - 21
= 21 -21
= 0