Step-by-step explanation:
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Answer:
8x+140=180
8x=40
x=5°
Step-by-step explanation:
Sum of angles in a straight line=180°
Answer:
rectangle: 30 in^2
triangle: 12 in^2
composite: 42 in^2
Step-by-step explanation:
area of a rectangle: length times width
area of a triangle: 
composite area: break the area up by shapes you can find the area of, then add it back together
Answer:
1:2.33
Step-by-step explanation:
Divide 107.8 by 46.2 to get how much 107.8 equals when 46.2 equals 1. you get 1:2.33.