Can someone help me with my homework?​

Which ratio is equivalent to 10: 85

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.