Find the value of x and the measure of the angle labeled 2x

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9

Which system of linear inequalities is graphed? can somebody pleasssse

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?