Help me ASAP pls in maths

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

Alogical argument that is presented in graphical form using boxes and arrows is called?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.