Answer:
b
Step-by-step explanation:
each brick is the exact same size.
(Also can I please have brianliest? I need it to level up!!!)
Answer:
C. II only
Step-by-step explanation:
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Answer:

Step-by-step explanation:
By putting the numbers in the given equation,

2x + 3 + 3x = 7x + 9
5x + 3 = 7x + 9
(5x + 3) - 7x = (7x + 9) - 7x
(5x - 7x) + 3 = 9
-2x + 3 = 9
(-2x + 3) - 3 = 9 - 3
-2x = 6

-x = 3
x = -3
Therefore, our equation is correct which has a negative result.
In place of 6 if we use 8, value of x will be negative again.
Answer:
60
Step-by-step explanation:
10 + 5 = 15. 15/2 is 7.5. 7.5 times 8 is 60. The formula for the area of the trapezoid is (a+b)/2 x h.