Question 188768
S= 4lw + 2wh (S = 102, L = 7, w = 3) 
In this problem, they want you to solve for unknown variable(H)?
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2wh = S -4lw
h = (S-4lw)/(2w)
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h = (102 -4*7*3)/(2*3)

h = 18/6

h = 3
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Cheers,
Stan H.