Imagine a small pond with just 4 water lilies. guess how many lilies will be in the pond just a month later:

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

X+y=-4 x-y=2 use elimination with adding and subtraction