Answer:
Raymond's mistake was on the last step, since he didn't square root both sides
The correct answer should be

Step-by-step explanation:

Good luck!
The statement on the bottom left is correct. (6 students studied for 20 to 24 hours)
If you find a common denominator for the two, which is 12 it will make it easier to add. So 4 3/12 + 3 4/12 = 7 7/12.
your answer is 7 7/12.
Answer:
21 projects each
Step-by-step explanation:
3150 ÷150