At the movie theater, three candy bars and two sodas costs $\$ 14.00$. Four candy bars and three sodas costs $\$ 19.50$. Find the cost of a soda.

Step 1 ：Let's represent the cost of a candy bar as 'c' and the cost of a soda as 's'.

Step 2 ：From the problem, we can form two equations: \(3c + 2s = 14.00\) and \(4c + 3s = 19.50\).

Step 3 ：We can solve this system of equations to find the cost of a soda.

Step 4 ：The solution to the system of equations is \(c = 3.00\) and \(s = 2.50\).

Step 5 ：So, the cost of a soda is \(\boxed{2.50}\).