Answer:
AB = 6.4
Step-by-step explanation:
Assuming that AB + BC is AC, then we can say the following:
AB + BC = AC
AB + 6.8 = 13.2
AB + 6.8 + -6.8 = 13.2 + -6.8
AB = 6.4
Cheers.
Answer:
0.321, 0.32...(Line means it is repeated), 2.52, 2.5...
Complementary and adjacent.
The two angles are complementary because they add up to 90°. It's given that line JL is perpendicular to line MN, and perpendicular means they form a 90° angle where they intersect.
The two angles are adjacent because they are next to each other.
From the given data, it is clear that the first area model represents the fraction 
From the second area model,
Total number of regions = 6
Number of shaded regions = 2
The fraction represented by the model = 
Let's complete the expression.
