can someone please help me? i will mark brainiest and i will give more points

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

In a column proof the right column states your reasons

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?