Answer:
x = 9
Step-by-step explanation:
The sum of the 4 angles in a quadrilateral = 360°
Sum the given angles and equate to 360
90 + 109 + 9x - 5 + 85 = 360, that is
9x + 279 = 360 ( subtract 279 from both sides )
9x = 81 ( divide both sides by 9 )
x = 9
Would it be 2:1? I really don't know, I haven't learned that yet, sorry
3 1/2 divided by 2 1/4 = 1.55555556
1.55555556 Rounded is 1.55
3: 12x1=1=12 because you’re changing the order of numbers you’re multiplying but the product stays the same