I need help with 8 math problems it says f(x) = 2-3x and g(x)= -x exponent 2-x-1. Find the following and simplify when possible 1. (f - g) (-3) 2.(f - g) (x) 3. (f · g) (-1) 4. (f · g) (x) 5. f (x - 1) 6. f ( x - 1 ) - f (1) 7. g(x + 2 ) - g(2) 8. g(x+ h)-g(x). Can you please show the step by step solutions for all 8 problems along with the answer.

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters