Find the Solution by Graphing the System of Equations

Find the solution by graphing the system of equations.
-A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 6 slices of pizza and 5 soft drinks for $28.45. The second group bought 5 slices of pizza and 5 soft drinks for $
25) 10. We can represent this situation with the system of equations
6p + 5s = 28.45
5p + 5s = 25.10
Where p is the cost of a slice of pizza and s is the cost of a soft drink. Determine the cost of one slice of pizza.

A) $1.67 per slice of pizza
B) $3.35 per slice of pizza
C) $2.17 per slice of pizza
D) $2.85 per slice of pizza