Help please “SHOW YOUR WORK!”

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Determine the function’s value when x = -1 a. g(-1)=-3 b. g(-1)=0 c. g(-1)=1 d. g(-1)=27