Let f(x) = 3x – 2 and g(x) = 3x + 5. Find f(g(a)). A. f(g(2)) = 3/3x + 3
B. f(g(x)) = 912 – 2+5
D. f(g(x)) = 3V2 – 2 + 3x + 5
+
C. f(g(2)) = 3/3x + 5
=
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Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Me d is also an option but i couldn't get it in the picture

Norder to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. if 4 gallons of paint must be mixed, how many gallons of white paint must be used?