could someone please help me answer this question? im trying to get in done as soon as possible so im willing to give brainliest :)

The parabola opens: y=√x-4 (principal square root) up down right left

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank