Please help. I can't find answer.

What statement is true? 2x^2-9x+2=-1

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d

Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates