Area of a triangle = 1/2 x base x height
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Find Height :
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3.75  = 1/2 x 2.5 x height
3.75 = 1.25 x height 
height = 3.75 ÷ 1.25
height = 3 meters
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Answer: The height is 3 meters.
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Answer:
h = b - 11.50
Step-by-step explanation:
Sharron(h) has 11.50 less than Rita(b)
h = b - 11.50
 
        
             
        
        
        
Probably B, 3 kilograms. Since grams are too small, and liters isn’t measuring mass, kilograms is the best choice.
        
             
        
        
        
The easiest way to solve this is by elimination. 
3x - y = 6 
6x + y = 21
Since you have a negative and positive y with the same coefficients (1), they cancel, and you add the other terms so it would look like:
9x = 27 
Then solving for x leaves you with x = 3 
Then you take the x value of three and plug it into to either of the equations, so 
3(3) - y = 6
9 - y = 6 
subtracting 9 
-y = -3 
then dividing by -1 
y = 3 
so the solution is x = 3 y = 3 or (3,3)