Can someone pleas do these for me Ill do 100 points and I’ll make most

Find the distance between the point (-3,-4), and (see the picture below)

What is the best estimate of the length of a football

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30