Can i have some help

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)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?