Answer:
As the ice cubes get heated, the particles of the ice also start to heat up. This way, through conduction and radiation, the particles start bouncing on one another and the heat transfers. this way, they particles begin to make way for the other, resulting in the solid changing to liquid, because the particles are now farther apart.
Hope this helps
(-1,1.5) because you add both ys and both xs then divide by two to find the middle
On your calculator your write 8 on the y axis and 4 on the x axis
217.5/87=2.5. I put it into a calculator and this is what I got.