If the value of a in the quadratic function f(x) = ax2 + bx + c is -8, the function will. (I would give Brainliest, but I don't know how to do that ;-;)
Many thanks!

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189