"Find the distance between P (1,2) and Q (4.5, 10.75) The distance between P and Q is_"

PLEASE HELP ASAP

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

What are the soultion(s) to the quadratic equation 40- x^2=0

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.