In the right triangle ABC, m

It would be b because if you look to the diagram there says 92 and then x and then go trough 115

the formula for converting absorbance to transmittance goes as:

a = log (1/t)  a = 2 - log(%t)  10^a = 1/t  t = 10^-a  %t = 100(10^-a)

 

so at the given value of a,   a = 1.5

%t = 100(10^-1.5)

%t = 3.16%

  example you can find the perimeter by addig all of its respective sides as such: (12+x)+(12+x)+(7+y)+(7+y).  adding like terms will result in   2x+2y+38    if you chose  xy+7x+12y+84, you multiplied the two sides to find the area.  if you chose  x+y+19