At the first restaurant the cost of 1 drink and pizza is 19.25, the cost for 2 drinks and a pizza is 20.50.
Subtract the 2 drink price from the 1 drink price to find the cost of 1 drink:
20.50 - 19.25 = $1.25 for 1 drink.
Since x is the number of drinks, the second restaurant drinks sell for $1.50
So the drinks are cheaper at the first restaurant.
The price of the pizza at the first one is 19.25 - 1.25 = $18
The price at the 2nd one is also $18
The only true statement is C.