Answer: I can help you with the first one.
Explanation:
First, here is the formula D=(x2-x1)2+ (y2-y1)2 so you would plug the numbers in and get D= (0-(-3))^2)+(7-2)^2 now you would solve that and get 34 now you find the square root of 34 is the answer is 5.8
Hope that helps