Answer:
a) Lower bound = 39.5
b) Lower bound = 82.75
3x + 2 < –7 or 3x + 2 > 7
Step-by-step explanation:
∠ACB and ∠ECD are vertical angles, so ∠ACB = ∠ECD.
∠D = ∠B
∠A = ∠E
△ABC and △EDC are similar because they have the same angles.
