SOLUTION
1. From the picture above, checking the number of tiles, we will notice that Rita's tiles combination is adding by 4, while Chris' pattern of tiles is adding by 6
Hence, the equation for Rita's pattern is y = 1 + 4n
And the Equation for Chris' pattern is y = 2 + 6n, where n is the number of tiles in both cases
2. This system of Equation has the solution?
we will equate both equations, that is y = 1 + 4n and 2 + 6n to find n and y.
To find y, we put n = -1/2 into any of the equations.
This system of Equation has the solution (n = -1/2, y = -1)
3. The number of tiles in Rita's and Chris's figures "cannot" be equal, because the number of tiles cannot be a negatve number and the figure number cannot be a fraction