I need help with these Three questions. Question 1:
Look at the expression shown below.

6x3 + 2x2 + 3x + 5

Name the coefficients and the constants in the expression.

Question 2:Quadrilateral PQRS has vertices P(1, 3), Q(1, -4), R (-6, -4), and S(-2, 3).
What is the length of segment QR?

Question 3:
Molly knows that 30% of the students at her school are boys and that there are 600 boys at her school. She wants to find the total number of students at the school, because she needs to order t-shirts for all the students. What is the total number of students at Molly’s school?