Help please asap will mark brainliest!

The polynomial function of least degree with a leading coefficient of 1 is: f(x) = x3 + ax2 + bx + c

The table above shows approximate conversions from gallons to liters. what is the value of x?

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