Answer:
126 square units
Step-by-step explanation:
Area of section 1 is 8 square units which is triangle and,
Area of triangle is = 
b= 2 units and height =8 units
So,
Area of section 1 = 
Same Area is of section 2 which is also a triangle and has same base and height.
So,
Area of Section 2 =
Now the Area of section 3 which is square with side of 10 units
So,
Area of section 3 = 
Total Area of Trapezoid = 
Answer:
5x - 2y = 30
x + y = 35
Step-by-step explanation:
Number of correct answers = x
Number of incorrect answers = y
Points won per correct answer = 5
Points lost per incorrect answer = 2
If Reggie received 30 points :
Required equation :
(points won per correct answer * number of correct answers) + (points lost per incorrect answer * number of incorrect answers)
5x + (-2y) = 30
5x - 2y = 30
Equation showing that Reggie answer all 35 questions :
Number of correct answers + number of incorrect answers = 35
x + y = 35
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