The first several steps of evaluating (-2)(3&4/7) are shown, including the distributive property. What is (-2)(3&4/7)?

the answer i believe is 27 units.

step-by-step explanation:

48+y= ?

the y is the variable and the ? could also be a variable  

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%