Watch closely. I'll try to go slow:
You said <u>v² = 2 g t</u>
Divide each side by 2g : <em>v² / 2g = t</em>
Did you follow that ?
Go to the third pic for your answer. I got problem 4 wrong but it shows the correct answer.
A. 30 sixth graders
b. 12 sixth graders
c. If the school has 40 students and the total of students is 70, the number of sixth graders is x
d. 36 students
2.33 (repeating) or 2 1/3
The numbers are 2 and 8 because the ratio of 6 to 3 is 2:1