Somebody please do this for me do it right you get brainlist
Answer ASAP
Due soon!!

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

The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 13-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50

Astudent is solving a system of equations by substitution and comes up with the solution 3 = 3. assuming that he solved the problem correctly, which of the following can be said about this system of equations?