Ineed fast

the equation y=-5.131x^2+31.821x-3.333 approximates the number of people standing in line to catch commuter train x hours after 5am .
what is the best estimate for the number of people in line at 8am?

77
46
40
32

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )