Answer:
69
Step-by-step explanation:
4x + 5 = 2x + 7
4x + 5 - 2x = 2x - 2x +7
2x + 5 = 7
2x + 5 - 5 = 7 - 5
2x = 2
2x÷2 = 2÷2
x = 1
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The area of the triangle should be: [(1 + 5 + 4) × 11]/2= 55 (ft²)
The area of the rectangle should be: 5 × 2 = 10 (ft²)
The area of the shaded region is: 55 - 10 = 45 (ft²)