36*40+36*40-6*6=2844ft^2
we had to subtract the area of the closet so it wasn't counted twice :P
For it to be non-linear, the rate of change cannot be constant. For the first table the rate is a constant 1 and the second table has a constant rate of -1. The 3rd and 4th tables have no constant rate and thus are non-linear.
The 4th table is increasing while the 3rd table is decreasing.
So the 3rd table, Set C, is the only non-linear negative association between x and y.
Right angles im pretty sure
5 pairs
one kind of writing paper for each coloured envelope
the last three papers would have to be in envelope colours that were already use so they cant be counted.
