Quadrilateral A'B'C'D' is the result of dilating quadrilateral ABCD about point P by a scale factor of 2. Please help with both questions

Which of the following are parts of a sphere

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28