Please, Help! Brainiest Answer and Stars. Giving all the points I have to offer

At a local basketball tournament, the cost of 3 hot dogs and 2 sodas is $11, where the bill for 4 hot dogs and 3 sodas is $15.25.

a) Using this word problem, write a system of equations to represent this problem. Let H stand for hot dogs and S stand for sodas.
4H + 3S = $15.25
H + S = $15.25
(^^^ What I got so far)

b) Solve the system of equations by using the substitution method.

c) What would the cost of 1 hot dog and 1 soda be?