PLS HELP PLS !! A raw potato was found to have a mass of 330 g. The potato was sliced and the slices or set an a single layer on a piece of screen wire to dry in the sun. The potato was measured after 7, 14, in 21 days and found to be at 212 g, 148 g, and 126 g.

what is the total mass of the potato likely to be on day 23?

then determine when the potatoes mass was 170 g

and finally what was the total mass of the potato slices after 3 days of drying time